definite-integral

Question: $\int_{0}^{\pi /2}{\frac{1+2\cos x}{{{(2+\cos x)}^{2}}}=}$

1) $\frac{\pi }{2}$

2) $\pi $

3) $\frac{1}{2}$

4) None of these

Solution:

Explanation: No Explanation

Fundamental definite integration Definite integration by substitution

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