Mathematics

Evaluate:$$\displaystyle\int \frac{cos\,x}{\sqrt{9sin^{2}x-1}}dx $$


ANSWER

$$\dfrac{1}{3} \log\left | 3 \sin\,x+\sqrt{9 \sin^{2}x-1} \right |+C $$


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Single Correct Medium Published on 17th 09, 2020
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