Evaluate: ^2 x d x - Vidyadip

Question

Evaluate:

$\int \tan ^2 x \cdot d x$

✓

Answer

$\begin{aligned} \int \tan ^2 x d x & =\int\left(\sec ^2 x-1\right) d x \\ & =\int \sec ^2 x d x-\int 1 d x \\ & =\tan x-x+c\end{aligned}$

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