Geometry
# Proving Trigonometric Identities

$\frac{\tan(\theta)}{\sin(\theta)}$ is equivalent to which of these?

If this equation is true...

$\sin^a(\theta) \cdot \csc^5(\theta) = \sin(\theta)$

...then what is $a$?

Simplify:

$\sin^2(\theta) \csc^3(\theta) \cos^4(\theta) \sec^5(\theta) \tan^6(\theta) \cot^{7}(\theta)$

$\frac{\sin^2(\theta) + 1}{\sin(\theta)}$

Which expression is equivalent to the expression above?