Question

prove cosx + 1/sin^3 = cscx/1-cosx

Answer 1

is it jus 1/sin^3 or is it 1/sin^3x

Answer 2

1/sin^3x

Answer 3

@hammytams

I think the problem should have been posted to read as follows:

(cos(x) + 1)/(sin^3(x)) = csc(x)/(1-cos(x))

Answer 4

using the R.H.S cscx/1- cosx
multiply the mumerator and denominator by 1 +(cosx)

Answer 5

since cosecx is equal to 1/sinx
(1+cosx/sin^2x) x (1/sinx) = 1+cosx/sin^3x which is = L.H.S hence proven

Answer 6

@hammytams What does R.H.S mean?

Answer 7

right hand side sorry

Answer 8

of the equation