definite-integral

Question: $\int_{0}^{\pi /4}{\frac{\sin x+\cos x}{9+16\sin 2x}\,dx=}$



1) $\frac{1}{20}\log 3$
2) $\log 3$
3) $\frac{1}{20}\log 5$
4) None of these
Solution: Explanation: No Explanation
Fundamental definite integration Definite integration by substitution

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