Simplify the trigonometric expression.

Question

sin^2 theta / 1-cos theta

A. 1+cos theta
B. sin theta
C. 1-sin theta / cos theta
D. 1+sin theta / cos theta

Answer 1

The expression as is when evaluated according to the BEDMAS rules would be equal to:
sin²θ - cosθ
since the division is done before the subtraction.

The expression should have been written
sin²θ/(1-cosθ)
in which case
= (1-cos²θ)/(1-cosθ)
=(1+cosθ)(1-cosθ)/(1-cosθ)
=1+cosθ
if θ≠2nπ, where n is an integer.

Answer 2

so wuts the answer

Answer 3

1+cosθ

Answer 4

merci beaucoup