Question

integral of (sec^2x)(cosec^2x)

Answer 1

\[

\frac{\sec ^2(x)}{\csc ^2(x)}=\frac{1}{\frac{\cos ^2(x)}{\sin
^2(x)}}=\tan ^2(x)
\]

Answer 2

Isn't it \((\sec^2 x)(cosec^2x)\)?

Answer 3

\[
\int \tan ^2(x) \, dx=\int \left(\sec ^2(x)-1\right) \, dx=\tan
(x)-x +C
\]