Question

Which expression is equivalent to the trigonometric expression

Answer 1

A:
`csc(\theta)`

Explanation:

Let's rewrite the expression in terms of sine and cosine, then simplify what can be simplified.:

`sin(\theta) \cdot (cos^2(\theta))/(sin^2(\theta))\cdot \frac 1{cos^2(\theta)} =\\\frac1{sin(\theta)} = csc(\theta)`