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The value of the integral int 0^ 2 pi left( frac...

This question belongs to Engineering Maths Calculus
Calculus
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The value of the integral \[\int_0^{2\pi } {\left( {\frac{3}{{9 + {{\sin }^2}\theta }}} \right){\text{d}}\theta } \]     is

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Correct Answer: Option A
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