Question

Cosec ² Ø - 1 = ?
What is the answer for the above equation .

Answer 1

Answer:

$\sin^{2} \alpha + \cos^{2} ( \alpha ) = 1 \\ \frac{\sin^{2} \alpha}{ \sin^{2} \alpha } + \frac{cos^{2} ( \alpha )}{\sin^{2} \alpha} = \csc^{2} \alpha \\ 1 + \cot^{2} \alpha = \csc^{2} \alpha \\ \\ \csc^{2} \alpha - 1 = cot^{2} \alpha$