SA

Evaluate: $\int_{0}^{\pi/4}\frac{1}{sin~x+cos~x}dx$

SA

Evaluate $\int_{0}^{\frac{\pi}{4}}\frac{x~dx}{1+cos~2x+sin~2x}$

VSA

Evaluate: $\int_{0}^{\frac{\pi}{4}}\sqrt{1+\sin 2x}dx$.

LA

Evaluate: $\int_{0}^{\pi}\frac{dx}{a^{2}\cos^{2}x+b^{2}\sin^{2}x}$.

SA

$\text{Evaluate: }\int_{0}^{1} x\,\tan^{-1}x\,dx.$

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