ascent4cat : Messages : 3400-3429 of 4167

All are equal..

any number raised to 1 is the number itself. In that way for given examples i.e 2^1 = 2 hence 2/2=1, likewise for all others i.e. 3^1/3=3/3=1, 6^1/6=6/6=1, 12^1/12=12/12=1. hence each term is equal to 1.

From: karthik srinivas <karthik187@...>
To: ascent4cat@yahoogroups.com
Sent: Thursday, 13 November, 2008 6:14:53 PM
Subject: [2IIM CAT Prep] One doubt in Quants

Hi Team,

Kindly clarify me in this question.

Which of the following is the largest.

2^1/2,3^1/3, 6^1/6,12^ 1/12 with explanation ASAP please.

Regards,
Karthik S

Connect with friends all over the world. Get Yahoo! India Messenger.

Reply | Messages in this Topic (8)

#3401

From: "Ascent Education CAT, Classes, Groups" <cat@...>
Date: Thu Nov 27, 2008 2:59 am
Subject: How to Crack CAT? Seminar by Sarath Babu - IIM A

cat@...

Hi

Ascent Education is organizing an hour of interaction with Mr. Sarath Babu, PGDM IIM Ahmedabad, CEO Food King Catering, MTV Youth Icon Nominee. Details of the seminar is given below

Date: Sunday, November 30, 2008
Venue: MRF Hall, Loyola College, Chennai
Time: 3:30 PM to 5 PM
Admission: Registration required. Registration is free and is on a first come first served basis.

To register: Call 4500 8484 or 3912 4040 or send an email to info@...

Best wishes

Ascent Education - An IIM Alumni Venture
Classes for CAT 2009 @ Chennai & Study material for CAT 2009

Reply | Messages in this Topic (1)

#3402

From: Cathy <cathyspirit@...>
Date: Wed Nov 26, 2008 5:46 pm
Subject: Re: [2IIM CAT Prep] Help

cathyspirit

nope

On Tue, Nov 11, 2008 at 11:29 AM, ishan trivedi <ishan_trivedi2005@...> wrote:

Anyone please let me know if we can carry a calculator in the CAT exams.

--
Cathy

#3403

From: "siva sahoo" <sivasahoo.cse@...>
Date: Wed Nov 26, 2008 10:36 am
Subject: Re: [2IIM CAT Prep] Help

sivasahoo.cse@...

No you cant carry any electronic gadgets. only u can carry your pencil,eraser and sharpener and your admit card into the hall.

On Tue, Nov 11, 2008 at 11:29 AM, ishan trivedi <ishan_trivedi2005@...> wrote:

Anyone please let me know if we can carry a calculator in the CAT exams.

#3404

From: "sharan kurkoti" <sharankurkoti@...>
Date: Wed Nov 26, 2008 5:52 am
Subject: Re: [2IIM CAT Prep] One doubt in Quants

skurkoti087

Hi Murali,

whatever lohit has given explaination is correct.

please do read the mail once again...

and your concept i really dis agree with it... all are not equal.

On Sat, Nov 22, 2008 at 3:21 PM, murlidhar gone <gmurli_uict@...> wrote:

All are equal..

any number raised to 1 is the number itself. In that way for given examples i.e 2^1 = 2 hence 2/2=1, likewise for all others i.e. 3^1/3=3/3=1, 6^1/6=6/6=1, 12^1/12=12/12=1. hence each term is equal to 1.

From: karthik srinivas <karthik187@...>
To: ascent4cat@yahoogroups.com
Sent: Thursday, 13 November, 2008 6:14:53 PM
Subject: [2IIM CAT Prep] One doubt in Quants

Hi Team,

Kindly clarify me in this question.

Which of the following is the largest.

2^1/2,3^1/3, 6^1/6,12^ 1/12 with explanation ASAP please.

Regards,
Karthik S

Connect with friends all over the world. Get Yahoo! India Messenger.

--
Regards
~Sharan Kurkoti
"Tell me and I'll forget; show me and I may remember; involve me and I'll understand"

Reply | Messages in this Topic (8)

#3405

From: "sharan kurkoti" <sharankurkoti@...>
Date: Thu Nov 27, 2008 3:44 am
Subject: Re: [2IIM CAT Prep] Help

skurkoti087

Ishan,
No dude... you cant carry calculator.

if you cant quickly add numbers or divide or calculate anything by yourself, then how can u go for managing big organisations wherein you need to take quick actions or steps based on the situation you get. there you cant make use of calci or any other things. you yourself should solve it. so they want us to calculate every problem given and give the answer in CAT paper. thats why they have kept
" Aptitude" section,which will show how good you are in thinking analytically.

so dont ever think of the things getting very easily. its very tuf to go to top. hold your nerves,pullout your strengths and work out.

regards
~sharan

On Tue, Nov 11, 2008 at 11:29 AM, ishan trivedi <ishan_trivedi2005@...> wrote:

Anyone please let me know if we can carry a calculator in the CAT exams.

--
Regards
~Sharan Kurkoti
"Tell me and I'll forget; show me and I may remember; involve me and I'll understand"

#3406

From: raj kumar <dv_rajkumar@...>
Date: Thu Nov 27, 2008 4:24 am
Subject: Re: [2IIM CAT Prep] One doubt in Quants

dv_rajkumar

HI this is a CAT 2006 Question

The way to take the problem

Let us take the L.C.M of (2,3,4,6,12)

(2^1/2)^12, (3^1/3)^12 , (4^1/4)^12 ,(6^1/6)^12, (12^1/12)^12

we get

2^6 , 3^4 , 4^3 ,6^2 , 12^1

so from above solution we can conclude 3^1/3 is the largest.

Regards

D.Rajkumar

sharan kurkoti <sharankurkoti@...> wrote:

Hi Murali,

whatever lohit has given explaination is correct.

please do read the mail once again...

and your concept i really dis agree with it... all are not equal.

On Sat, Nov 22, 2008 at 3:21 PM, murlidhar gone <gmurli_uict@yahoo.co.in> wrote:

All are equal..

any number raised to 1 is the number itself. In that way for given examples i.e 2^1 = 2 hence 2/2=1, likewise for all others i.e. 3^1/3=3/3=1, 6^1/6=6/6=1, 12^1/12=12/12=1. hence each term is equal to 1.

From: karthik srinivas <karthik187@yahoo.com>
To: ascent4cat@yahoogroups.com
Sent: Thursday, 13 November, 2008 6:14:53 PM
Subject: [2IIM CAT Prep] One doubt in Quants

Hi Team,

Kindly clarify me in this question.

Which of the following is the largest.

2^1/2,3^1/3, 6^1/6,12^ 1/12 with explanation ASAP please.

Regards,
Karthik S

Connect with friends all over the world. Get Yahoo! India Messenger.

--
Regards
~Sharan Kurkoti
"Tell me and I'll forget; show me and I may remember; involve me and I'll understand"

Add more friends to your messenger and enjoy! Invite them now.

Reply | Messages in this Topic (8)

#3407

From: manish gupta <manish84002@...>
Date: Thu Nov 27, 2008 4:32 am
Subject: Re: [2IIM CAT Prep] hw to improve vocab

manish84002

U can go through

"Word power made easy " for vocab improvement

--- On Wed, 12/11/08, sharad_ss2005 bade dady <sharad_ss2005@...> wrote:

From: sharad_ss2005 bade dady <sharad_ss2005@...>
Subject: [2IIM CAT Prep] hw to improve vocab
To: ascent4cat@yahoogroups.com
Date: Wednesday, 12 November, 2008, 1:09 PM

hi friends i m tannu ....send me the details about CAT and the eligibility to
attend CAT. Send me the list of institutions which conduct CAT examinations.

and which author book should i prefer for cat entrance and how to improve my vocab.
plz reply as soon as possible.

thanx.

Add more friends to your messenger and enjoy! Invite them now.

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#3408

From: Graha Durai <durai_rockboy@...>
Date: Thu Nov 27, 2008 3:36 pm
Subject: Re: [2IIM CAT Prep] hw to improve vocab

durai_rockboy

hi frnd to improve ur vocabulary by the way of reading newspaper daily. Ok wa...

sharad_ss2005 bade dady <sharad_ss2005@...> wrote:

hi friends i m tannu ....send me the details about CAT and the eligibility to
attend CAT. Send me the list of institutions which conduct CAT examinations.

and which author book should i prefer for cat entrance and how to improve my vocab.
plz reply as soon as possible.

thanx.

Add more friends to your messenger and enjoy! Invite them now.

Add more friends to your messenger and enjoy! Invite them now.

#3409

From: Graha Durai <durai_rockboy@...>
Date: Thu Nov 27, 2008 3:38 pm
Subject: Re: [2IIM CAT Prep] hw to improve vocab

durai_rockboy

hi frnd which college is the best college in coimbatore for study MBA?. Please answer my questions quickly.

sharad_ss2005 bade dady <sharad_ss2005@...> wrote:

hi friends i m tannu ....send me the details about CAT and the eligibility to
attend CAT. Send me the list of institutions which conduct CAT examinations.

and which author book should i prefer for cat entrance and how to improve my vocab.
plz reply as soon as possible.

thanx.

Add more friends to your messenger and enjoy! Invite them now.

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#3410

From: bharadwaja y <bharadwajasharma_y@...>
Date: Sat Nov 29, 2008 1:23 pm
Subject: question trignometry

bharadwajash...

hi clarify my doubt,

tan9-tan27-tan63+tan81=

need srt cut

#3411

From: "Haneef Mohammad" <haneef0786@...>
Date: Mon Dec 1, 2008 11:44 am
Subject: Re: [2IIM CAT Prep] question trignometry

haneef174

Apply tanA + tan B = tan (A+B) (1-tanA.tanB)

tan9 + tan81 - (tan27 + tan63)

tan90.(1 - tan9.tan81) - tan90.(1 - tan27.tan63)

Infinity - Infinity

Indeterminate.

~Cheers,
Haneef.

On Sat, Nov 29, 2008 at 6:53 PM, bharadwaja y <bharadwajasharma_y@...> wrote:

hi clarify my doubt,
tan9-tan27-tan63+tan81=
need srt cut

#3412

From: Bhavya Reddy <chinna_nivas@...>
Date: Mon Dec 1, 2008 1:02 pm
Subject: Re: [2IIM CAT Prep] question trignometry

chinna_nivas

hi bharadwaja,

we know that tan(A+B)= tan(A)+tan(B)/[1-tan(A)tan(B)]

so tan81=tan(9*9)=cot(9)

tan(9)+tan(81)=tan(9+81)*[1-tan9tan81]=tan90*[1-tan9cot9]=0;

proceeding on similar lines u'll get -(tan27+tan63)=0

so tan9-tan27-tan63+tan81=0;

may be i'm not sure but the approach is correct

bye

gud luck

From: bharadwaja y <bharadwajasharma_y@...>
To: ascent cat <ascent4cat@yahoogroups.com>
Sent: Saturday, 29 November, 2008 6:53:22 PM
Subject: [2IIM CAT Prep] question trignometry

hi clarify my doubt,

tan9-tan27-tan63+ tan81=

need srt cut

Add more friends to your messenger and enjoy! Invite them now.

#3413

From: amit jain <amitjain3325@...>
Date: Mon Dec 1, 2008 1:29 pm
Subject: Re: [2IIM CAT Prep] question trignometry

amitjain3325

check formula of tan a + tan b as here 63+27= 90 & 81+7 = 90. the trick lies their. i think answer will be zero bcoz of that very reason pl. confirm the same.

Regards

Amit

--- On Sat, 11/29/08, bharadwaja y <bharadwajasharma_y@...> wrote:

From: bharadwaja y <bharadwajasharma_y@...>
Subject: [2IIM CAT Prep] question trignometry
To: "ascent cat" <ascent4cat@yahoogroups.com>
Date: Saturday, November 29, 2008, 6:53 PM

hi clarify my doubt,

tan9-tan27-tan63+ tan81=

need srt cut

#3414

From: "arun kumar" <arun4y@...>
Date: Tue Dec 2, 2008 2:21 am
Subject: Re: [2IIM CAT Prep] Help

ricky_kumar1985

hiii

wht will be cuttoffs fr WELINGKAR COLL IN XAT....

On 11/26/08, sharan kurkoti <sharankurkoti@...> wrote:

Ishan,
No dude... you cant carry calculator.

if you cant quickly add numbers or divide or calculate anything by yourself, then how can u go for managing big organisations wherein you need to take quick actions or steps based on the situation you get. there you cant make use of calci or any other things. you yourself should solve it. so they want us to calculate every problem given and give the answer in CAT paper. thats why they have kept
" Aptitude" section,which will show how good you are in thinking analytically.

so dont ever think of the things getting very easily. its very tuf to go to top. hold your nerves,pullout your strengths and work out.

regards
~sharan

On Tue, Nov 11, 2008 at 11:29 AM, ishan trivedi <ishan_trivedi2005@...> wrote:

Anyone please let me know if we can carry a calculator in the CAT exams.

--
Regards
~Sharan Kurkoti
"Tell me and I'll forget; show me and I may remember; involve me and I'll understand"

#3415

From: vimlesh patelia <vimlesh_21mech@...>
Date: Tue Dec 2, 2008 9:39 am
Subject: Re: [2IIM CAT Prep] question trignometry

vimlesh_21mech

Hi all,

I don't think the sum of tanØ and tanß would be indeterminate.

If you do it by calcu then also you may come to know.

Regards,

Vimlesh Patelia.

P please consider the environment before printing this e-mail.

From: Haneef Mohammad <haneef0786@...>
To: ascent4cat@yahoogroups.com
Sent: Monday, 1 December, 2008 5:14:46 PM
Subject: Re: [2IIM CAT Prep] question trignometry

Apply tanA + tan B = tan (A+B) (1-tanA.tanB)

tan9 + tan81 - (tan27 + tan63)

tan90.(1 - tan9.tan81) - tan90.(1 - tan27.tan63)

Infinity - Infinity

Indeterminate.

~Cheers,
Haneef.

On Sat, Nov 29, 2008 at 6:53 PM, bharadwaja y <bharadwajasharma_ y@...> wrote:

hi clarify my doubt,

tan9-tan27-tan63+ tan81=

need srt cut

Check out the all-new face of Yahoo! India. Click here.

#3416

From: Aso Raymond <urz_aso@...>
Date: Tue Dec 2, 2008 11:15 am
Subject: Re: [2IIM CAT Prep] Help

urz_aso

Wat wil b the XAT cutoff for LIBA chennai???

arun kumar <arun4y@...> wrote:

hiii

wht will be cuttoffs fr WELINGKAR COLL IN XAT....

On 11/26/08, sharan kurkoti <sharankurkoti@gmail.com> wrote:

Ishan,
No dude... you cant carry calculator.

if you cant quickly add numbers or divide or calculate anything by yourself, then how can u go for managing big organisations wherein you need to take quick actions or steps based on the situation you get. there you cant make use of calci or any other things. you yourself should solve it. so they want us to calculate every problem given and give the answer in CAT paper. thats why they have kept
" Aptitude" section,which will show how good you are in thinking analytically.

so dont ever think of the things getting very easily. its very tuf to go to top. hold your nerves,pullout your strengths and work out.

regards
~sharan

On Tue, Nov 11, 2008 at 11:29 AM, ishan trivedi <ishan_trivedi2005@yahoo.com> wrote:

Anyone please let me know if we can carry a calculator in the CAT exams.

--
Regards
~Sharan Kurkoti
"Tell me and I'll forget; show me and I may remember; involve me and I'll understand"

Add more friends to your messenger and enjoy! Invite them now.

#3417

From: bharadwaja y <bharadwajasharma_y@...>
Date: Tue Dec 2, 2008 1:49 pm
Subject: Re: [2IIM CAT Prep] question trignometry

bharadwajash...

hi amit sorry to say ur ans is wrng ans is 4

--- On Mon, 12/1/08, amit jain <amitjain3325@...> wrote:

From: amit jain <amitjain3325@...>
Subject: Re: [2IIM CAT Prep] question trignometry
To: ascent4cat@yahoogroups.com
Date: Monday, December 1, 2008, 5:29 AM

check formula of tan a + tan b as here 63+27= 90 & 81+7 = 90. the trick lies their. i think answer will be zero bcoz of that very reason pl. confirm the same.

Regards

Amit

--- On Sat, 11/29/08, bharadwaja y <bharadwajasharma_ y@...> wrote:

From: bharadwaja y <bharadwajasharma_ y@...>
Subject: [2IIM CAT Prep] question trignometry
To: "ascent cat" <ascent4cat@yahoogro ups.com>
Date: Saturday, November 29, 2008, 6:53 PM

hi clarify my doubt,

tan9-tan27-tan63+ tan81=

need srt cut

#3418

From: himanshu goyal <ashu_2859@...>
Date: Wed Dec 3, 2008 8:03 pm
Subject: Re: [2IIM CAT Prep] question trignometry

ashu_2859

answer should be infinity-infinity=undetermined
by the formula tan(A+B)=(tanA+tanB)/(1-tanA*tanB)
once take the vales of A and B 27 and 63 respectively and than take 9 and 81....n think i am right as per ma last solution given to needed 1...
--- On Mon, 1/12/08, amit jain <amitjain3325@...> wrote:

From: amit jain <amitjain3325@...>
Subject: Re: [2IIM CAT Prep] question trignometry
To: ascent4cat@yahoogroups.com
Date: Monday, 1 December, 2008, 6:59 PM

check formula of tan a + tan b as here 63+27= 90 & 81+7 = 90. the trick lies their. i think answer will be zero bcoz of that very reason pl. confirm the same.

Regards

Amit

--- On Sat, 11/29/08, bharadwaja y <bharadwajasharma_ y@...> wrote:

From: bharadwaja y <bharadwajasharma_ y@...>
Subject: [2IIM CAT Prep] question trignometry
To: "ascent cat" <ascent4cat@yahoogro ups.com>
Date: Saturday, November 29, 2008, 6:53 PM

hi clarify my doubt,

tan9-tan27-tan63+ tan81=

need srt cut

Unlimited freedom, unlimited storage. Get it now

#3419

From: sneha agarwal <sneha7175@...>
Date: Thu Dec 4, 2008 7:07 am
Subject: speed distance nd time...

sneha7175

Two men are walking towards each other alongside a railway track. A freight train overtakes one of them in 20 secs and exactly 10 minutes later meets the other man coming from the opposite direction. The train passes this man in 18 secs. Assume the velocities are constant throughout.

A) how long after the train has passed the second man will the two men meet?

1) 89.7 min
2) 90 min
3) 90.3 min
4) 91 min
5) CBD

B) the ratio of the velocities of the first man to the second man is?
no options. just tel the answer.....

Bring your gang together. Do your thing. Find your favourite Yahoo! Group.

Reply | Messages in this Topic (1)

#3420

From: "sindhujaa_2004" <sindhujaa_2004@...>
Date: Thu Dec 4, 2008 2:50 pm
Subject: quants qustion

sindhujaa_2004

(a+b+c)^20 - how many distinct terms are there in it?
please reply with explanation.
thanks in advance!

#3421

From: shashank <shashank_krrish@...>
Date: Thu Dec 4, 2008 6:11 pm
Subject: Re: [2IIM CAT Prep] question trignometry

shashank_krrish

infinity - infinity is not an indeterminate dude..................

since infinity is a symbol and not a value..............infinity - infinity is also infinity..............

however the method in which you have progressed is not exactly correct...

the answer cannot be infinity because there is no value in the sum that can possibly yeild an infinity in the answer.....( tan 9, tan 27, tan 63, tan 81)

all the values are finate and hence the answer should also be a finate one.....

In fact, the answer fot the sum turns out to be 4.....

this is supposed to be solved by analysis ...... and not by brute caluclation

"the method you have proposed is like saying......

3*0 = 5*0

and hence 3=5; :"

--- On Mon, 1/12/08, Haneef Mohammad <haneef0786@...> wrote:

From: Haneef Mohammad <haneef0786@...>
Subject: Re: [2IIM CAT Prep] question trignometry
To: ascent4cat@yahoogroups.com
Date: Monday, 1 December, 2008, 5:14 PM

Apply tanA + tan B = tan (A+B) (1-tanA.tanB)

tan9 + tan81 - (tan27 + tan63)

tan90.(1 - tan9.tan81) - tan90.(1 - tan27.tan63)

Infinity - Infinity

Indeterminate.

~Cheers,
Haneef.

On Sat, Nov 29, 2008 at 6:53 PM, bharadwaja y <bharadwajasharma_ y@...> wrote:

hi clarify my doubt,
tan9-tan27-tan63+ tan81=
need srt cut

Get perfect Email ID for your Resume. Get before others grab.

#3422

From: michael arun <mma_gct@...>
Date: Wed Dec 31, 2008 7:03 pm
Subject: Re: [2IIM CAT Prep] question trignometry

mma_gct

hi guys....

i think this is the right answer

[tan(63)+tan(27)] - [tan(81)+tan(9)]

= [sin90/(cos63*cos27)]-[sin90/(cos81*cos9)]

=4.503..... check with your formulas....

--- On Tue, 2/12/08, vimlesh patelia <vimlesh_21mech@...> wrote:

From: vimlesh patelia <vimlesh_21mech@...>
Subject: Re: [2IIM CAT Prep] question trignometry
To: ascent4cat@yahoogroups.com
Date: Tuesday, 2 December, 2008, 3:09 PM

Hi all,

I don't think the sum of tanØ and tanß would be indeterminate.

If you do it by calcu then also you may come to know.

Regards,

Vimlesh Patelia.

P please consider the environment before printing this e-mail.

From: Haneef Mohammad <haneef0786@gmail. com>
To: ascent4cat@yahoogro ups.com
Sent: Monday, 1 December, 2008 5:14:46 PM
Subject: Re: [2IIM CAT Prep] question trignometry

Apply tanA + tan B = tan (A+B) (1-tanA.tanB)

tan9 + tan81 - (tan27 + tan63)

tan90.(1 - tan9.tan81) - tan90.(1 - tan27.tan63)

Infinity - Infinity

Indeterminate.

~Cheers,
Haneef.

On Sat, Nov 29, 2008 at 6:53 PM, bharadwaja y <bharadwajasharma_ y@...> wrote:

hi clarify my doubt,

tan9-tan27-tan63+ tan81=

need srt cut

Check out the all-new face of Yahoo! India. Click here.

Add more friends to your messenger and enjoy! Invite them now.

#3423

From: "chayankag" <chayankag@...>
Date: Fri Jan 2, 2009 1:20 pm
Subject: Negative Marking in MAT Feb 2009

chayankag

Dear friends

I have purchased the MAT Feb 2009 bulletin and i came to know that
there is no negative marking for wrong answers (TEST ADMINISTRATION
P.No. XV).

Please clearify how it is going to affect CET Conversion.

Please reply ASAP.

Thanks.

#3424

From: "ritikadayal" <ritikadayal@...>
Date: Sat Jan 3, 2009 5:21 am
Subject: Re: Negative Marking in MAT Feb 2009

ritikadayal

--- In ascent4cat@yahoogroups.com, "chayankag" <chayankag@...> wrote:
>
> Dear friends
>
> I have purchased the MAT Feb 2009 bulletin and i came to know that
> there is no negative marking for wrong answers (TEST
ADMINISTRATION
> P.No. XV).
>
> Please clearify how it is going to affect CET Conversion.
>
> Please reply ASAP.
>
> Thanks.
>
hi dear
as far as i know there is negative marking in mat (feb 09).and once
the score is converted into a CET score then you will be considered
as an oms student..chk this link for doubts
http://www.mbauniverse.com/special_on_mat.php?id=1682
all the best.

#3425

From: "crusty.d3vil" <crusty.d3vil@...>
Date: Sun Jan 4, 2009 3:28 am
Subject: Re: [2IIM CAT Prep] question trignometry

crusty.d3vil

well the correct solution is here ( i am writing down this solution
becuz michael arun`s equations and ans are different his equations
give negative ans but the ans is positive and also to remove sum
confusion abt formulas of trignometry)
TAN9 -TAN27 -TAN63 +TAN81
USE THE FORMULA
TAN(A)+TAN(B)=SIN(A+B)/COS(A)COS(B)
the domain for this formula is A �� n�� and B �� ��
so use this on 9 and 81 & the other group wud be 27 and 63
NOTE:- we cannt use the formula
TAN(A+B)=TANA-TANB/1+TANA*TANB
cuz the domain for this formula is A��n��+��/2  B��m��+��/2
and A+B��k��+��/2
so the question of infinity doesnt arise cuz u cant use this formula
on the group (9,81) and (27,63) cuz the sum is =��/2
more over ��-��  isnt infinity , its indeterminate and theres a
difference between indeterminate quatity and infinity
+�� means that its lager than all the real numbes however large it may
be , we dont know its value so how can u find its difference thats y
the difference cant be found hence its called inderterminate and that
is not equal to infinity
so using the formula
TAN(A)+TAN(B)=SIN(A+B)/COS(A)COS(B)
sin90/cos9cos81  - sin90/cos27cos63
now multiply numerator and denominator by 2
2/2cos9cos81 - 2/2cos27cos63
now use the formula 2cosAcosB=cos(A+B)+cos(A-B)
and also remember that cos(-��)=cos��
so it boils down to
2/cos72 - 2/cos36
i hope u guys know that cos36=(1/4)(��5+ 1 )
cos72=2cos^2(32)-1
so now put the values
my ans came to be abt 4.002

tc all
and happy new year
RAHUL SAINI

>
> On Sat, Nov 29, 2008 at 6:53 PM, bharadwaja y
> <bharadwajasharma_y@...>wrote:
>
> >   hi clarify my doubt,
> >
> > tan9-tan27-tan63+tan81=
> >
> > need srt cut
> >
> >
> >
>

>
>
> On Sat, Nov 29, 2008 at 6:53 PM, bharadwaja y
> <bharadwajasharma_y@...>wrote:
>
> >   hi clarify my doubt,
> >
> > tan9-tan27-tan63+tan81=
> >
> > need srt cut
> >
> >
> >
>

#3426

From: "crusty.d3vil" <crusty.d3vil@...>
Date: Sun Jan 4, 2009 3:30 am
Subject: Re: [2IIM CAT Prep] question trignometry

crusty.d3vil

well the correct solution is here ( i am writing down this solution
becuz michael arun`s equations and ans are different his equations
give negative ans but the ans is positive and also to remove sum
confusion abt formulas of trignometry)
TAN9 -TAN27 -TAN63 +TAN81
USE THE FORMULA
TAN(A)+TAN(B)=SIN(A+B)/COS(A)COS(B)
the domain for this formula is A ≠ nπ and B ≠ π
so use this on 9 and 81 & the other group wud be 27 and 63
NOTE:- we cannt use the formula
TAN(A+B)=TANA-TANB/1+TANA*TANB
cuz the domain for this formula is A≠nπ+π/2 
B≠mπ+π/2
and A+B≠kπ+π/2
so the question of infinity doesnt arise cuz u cant use this formula
on the group (9,81) and (27,63) cuz the sum is =π/2
more over ∞-∞  isnt infinity , its indeterminate and theres a
difference between indeterminate quatity and infinity
+∞ means that its lager than all the real numbes however large it may
be , we dont know its value so how can u find its difference thats y
the difference cant be found hence its called inderterminate and that
is not equal to infinity
so using the formula
TAN(A)+TAN(B)=SIN(A+B)/COS(A)COS(B)
sin90/cos9cos81  - sin90/cos27cos63
now multiply numerator and denominator by 2
2/2cos9cos81 - 2/2cos27cos63
now use the formula 2cosAcosB=cos(A+B)+cos(A-B)
and also remember that cos(-θ)=cosθ
so it boils down to
2/cos72 - 2/cos36
i hope u guys know that cos36=(1/4)(√5+ 1 )
cos72=2cos^2(32)-1
so now put the values
my ans came to be abt 4.002

tc all
and happy new year
RAHUL SAINI

>
> On Sat, Nov 29, 2008 at 6:53 PM, bharadwaja y
> <bharadwajasharma_y@...>wrote:
>
> >   hi clarify my doubt,
> >
> > tan9-tan27-tan63+tan81=
> >
> > need srt cut
> >



--- In ascent4cat@yahoogroups.com, michael arun <mma_gct@...> wrote:
>
> hi guys....
>              i think this is the right answer
>  
> [tan(63)+tan(27)] - [tan(81)+tan(9)]
>  
> = [sin90/(cos63*cos27)]-[sin90/(cos81*cos9)]
>
> =4.503..... check with your formulas....
>  
>  
>
> --- On Tue, 2/12/08, vimlesh patelia <vimlesh_21mech@...> wrote:
>
> From: vimlesh patelia <vimlesh_21mech@...>
> Subject: Re: [2IIM CAT Prep] question trignometry
> To: ascent4cat@yahoogroups.com
> Date: Tuesday, 2 December, 2008, 3:09 PM
>
>
>
>
>
>
>
>
>
> Hi all,
> I don't think the sum of tanØ and tanß would be indeterminate.
> If you do it by calcu then also you may come to know.
>  
> Regards,
> Vimlesh Patelia.
>
> P  please consider the environment before printing this e-mail.
>
>
>
>
>
>
> From: Haneef Mohammad <haneef0786@gmail. com>
> To: ascent4cat@yahoogro ups.com
> Sent: Monday, 1 December, 2008 5:14:46 PM
> Subject: Re: [2IIM CAT Prep] question trignometry
>
>
>
> Apply tanA + tan B = tan (A+B) (1-tanA.tanB)
>
> tan9 + tan81 - (tan27 + tan63)
>
> tan90.(1 - tan9.tan81) - tan90.(1 - tan27.tan63)
>
> Infinity - Infinity
>
> Indeterminate.
>
> ~Cheers,
> Haneef.
>
>
>
> On Sat, Nov 29, 2008 at 6:53 PM, bharadwaja y <bharadwajasharma_
y@...> wrote:
>
>
>
>
>
>
>
>
>
>
>
> hi clarify my doubt,
> tan9-tan27-tan63+ tan81=
> need srt cut
>
>
>
>
> Check out the all-new face of Yahoo! India. Click here.
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>       Add more friends to your messenger and enjoy! Go to
http://messenger.yahoo.com/invite/
>

#3427

From: "crusty.d3vil" <crusty.d3vil@...>
Date: Sun Jan 4, 2009 3:46 am
Subject: Re: quants qustion

crusty.d3vil

lemme tell u the simple formula and the reason behind it
number of termsin expansion of (x+y+z)^n=(n+1)(n+2)/2
and now the reason behind it
number of terms in this is equal to number of ways of distributing 20
identical things among 3 persons ,when each person can get zero or
more things
(3+20-1)
         C
          20
C-combination
tc



--- In ascent4cat@yahoogroups.com, "sindhujaa_2004"
<sindhujaa_2004@...> wrote:
>
> (a+b+c)^20 - how many distinct terms are there in it?
> please reply with explanation.
> thanks in advance!
>

#3428

From: Kausik Bose <kausikbose1987@...>
Date: Tue Jan 6, 2009 1:54 pm
Subject: Re: [2IIM CAT Prep] Negative Marking in MAT Feb 2009

kausikbose1987

i HAVE not decided yet to give feb mat .what are the good colleges under Feb MAT?

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#3429

From: "lalit4today" <lalit4today@...>
Date: Wed Jan 7, 2009 6:23 pm
Subject: Re: question trignometry

lalit4today

hi guys....
  i think this is the right answer
  [tan(63)+tan(27)] - [tan(81)+tan(9)]
=4