Question

Sin square / cos square+ cos square/sin square equal to sec square-cos square-2

Answer 1

$\frac{Sin^2\theta}{Cos^2\theta}+\frac{Cos^2\theta}{Sin^2\theta}$

$= Tan^2\theta + Cot^2\theta$

$= (Sec^2\theta -1)+(Cosec^2\theta-1)$

$= Sec^2\theta + Cosec^2\theta - 2$