Question

cot2theta-1/sin2theta​

Answer 1

ᴀɴsᴡᴇʀ :-

$\mathtt{ \frac{cos {}^{2} \theta - 1}{sin {}^{2} \theta} } \\ \\ \mathtt{ \frac{cos {}^{2} \theta}{sin {}^{2} \theta } - \frac{1}{sin {}^{2} \theta} } \\ \\ \mathtt{cot {}^{2} \theta - cosec {}^{2} \theta} \\ \\ \mathtt{ - 1}$

__________________