Question

Prove:
1/cosec x -cot x = cosec x +cot x

Answer 1

stuck here:-

Answer 2

sin x /1-cos x

Answer 3

no...in first step , just multiply and divide by cosec x+cot x

Answer 4

then use, cosec^2x-cot^2 x=1
standard identity

Answer 5

thanks

Answer 6

welcome :)

Answer 7

cos^4x - sin^4x what will be starting of this?? @hartnn

Answer 8

(c^2+s^2)(c^2-s^2) = 1*(c^2-s^2)

Answer 9

= cos 2x

Answer 10

cos^4x -sin^4x =2cos^x-1

Answer 11

I am here :- (cos^2x-sin^2x)

Answer 12

(cos x + sin x)(cosx - sin x )

Answer 13

is this correct?

Answer 14

what u want to prove it to be ?

Answer 15

2cos^2x -1

Answer 16

cos^2 -sin^2
use,
sin^2 =1-cos^2

Answer 17

because sin^2 +cos^2 =1

Answer 18

thanks!!

Answer 19

welcome :)