Mathematics

The value of the integral $$\int _ { 0 } ^ { \pi / 2 } \frac { 1 + 2 \cos x } { ( 2 + \cos x ) ^ { 2 } } d x$$ is


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$$\frac { -1 } { 2 }$$


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Single Correct Hard Published on 17th 09, 2020
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