Question

Solve: $\int \frac{1-\cos 2x}{1+\cos 2x}dx$

Answer 1

According to question,

$\int \frac{2si{n}^{2}x}{2co{s}^{2}x}dx$

=> $\int ta{n}^{2}x.dx$
=> $\int (se{c}^{2}x-1)dx$
=> $tanx-x+C$