Question

$\int \frac{sin^2\ x+cos^2\ x}{sin^2\ x\ cos^2\ x}\. dx$ is equal to
(A) tan x + cot x + C
(B) tan x + cosec x + C
(C) - tan x + cot x + C
(D) tan x + sec x + C

Answer 1

Separate the intergrals and apply integration