indefinite-integration

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

1) $\frac{1}{4}\left( \cos \frac{x}{4}-\sin \frac{x}{4} \right)+c$

2) $4\left( \cos \frac{x}{4}-\sin \frac{x}{4} \right)+c$

3) $4\left( \sin \frac{x}{4}-\cos \frac{x}{4} \right)+c$

4) $4\left( \sin \frac{x}{4}+\cos \frac{x}{4} \right)+c$

Solution:

Explanation: No Explanation

Fundamental integration

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