Trignometry - IIT JEE Past Question Trigonometry 4

11

virang1 Jhaveri ·2009-03-27 03:47:25

Sir
Is ABC a Triangle

UP 0 DOWN 0
Post on FacebookPost anonymously?

39

Dr.House ·2009-03-27 03:52:41

obviously yes virang

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-03-27 03:54:53

1?

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Kalyan Pilla ·2009-03-27 03:57:44

How is that Tapan??

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-03-27 04:01:00

sAsBsC + cAcB â‰¤ sAsB + cAcB

==> 1 â‰¤ cos(A-B)

then it gets easy!!

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-03-27 04:01:34

this inequality TECHnique I lurnt FRMO TARGETTIIT

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-03-27 04:02:19

in the form of solutions in various eg. by PROPHET SIR, KAYAMNT SIR n NISHANT SIR!!!!!

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Kalyan Pilla ·2009-03-27 04:10:36

But if sinC is 1 =>C=90⁰

Then sinAsinB+cosAcosB =1
=>cos(A-B)= 1

As A+B=90⁰

A=B=45⁰

Does that mean the eq is true only for a right isosceles triangle[7][7][7]

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-03-27 04:23:20

yes!

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-03-27 06:19:42

Let Sir Confioirm though, but by the equation definitely yes!

UP 0 DOWN 0
Post on FacebookPost anonymously?

62

Lokesh Verma ·2009-03-27 06:27:03

good work guys.. awesome :)

good that you learned something here :)

This was a past JEE question :)

UP 0 DOWN 0
Post on FacebookPost anonymously?

62

Lokesh Verma ·2009-03-27 06:27:46

but i dont think it needs to be a triangle..

you guys must have realized it now :)

UP 0 DOWN 0
Post on FacebookPost anonymously?

62

Lokesh Verma ·2009-03-27 06:28:04

there can be 2 answers then

1 and -1

isnt it?

UP 0 DOWN 0
Post on FacebookPost anonymously?

21

tapanmast Vora ·2009-03-27 06:32:58

SUMHTING [11] [5]

IT IS SOOOOOOOOOOOOOOOOOOOOO MANY THINGS!!!!!!!!!!!!

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Kalyan Pilla ·2009-03-27 06:38:19

Yeah we learned a lot
A good question
Explored a lot[1][3][5][57]

UP 0 DOWN 0
Post on FacebookPost anonymously?

IIT JEE Past Question Trigonometry 4

15 Answers

Your Answer

Similar Questions

IIT JEE Past Question Trigonometry 4

15 Answers

Your Answer

Add Image

Similar Questions