indefinite-integration

Question: $\int_{{}}^{{}}{{{\tan }^{-1}}\sqrt{\frac{1-\cos 2x}{1+\cos 2x}}}\ dx=$

1) $2{{x}^{2}}+c$

2) ${{x}^{2}}+c$

3) $\frac{{{x}^{2}}}{2}+c$

4) $2x+c$

Solution:

Explanation: No Explanation

Fundamental integration

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