Question

Prove that each equation is an identity. CSC^2x-COS^2x CSC^2X=1

Answer 1

write csc x = 1/ sin x
what u get ?

Answer 2

well start by removing the common factor

csc^2(x)(-cos^2(x) + 1) = 1

or

csc^2(x)(1 - cos^2(x)) = 1

what do you know about 1 - cos^(x)....?

Answer 3

oops should be what do you know about 1 - cos^2(x)..?