CBSE

MATHEMATICS · Single correct · CBSE · Mathematics · Integrals · Integrals

Problem

Calculate ∫cos⁡(5x)sin⁡2(5x) dx\displaystyle\int \frac{\cos(5x)}{\sin^{2}(5x)}\,dx. (a) 15ln⁡∣sin⁡(5x)∣+C\dfrac{1}{5}\ln|\sin(5x)|+C (b) −1sin⁡(5x)+C-\dfrac{1}{\sin(5x)}+C (c) −15sin⁡(5x)+C-\dfrac{1}{5\sin(5x)}+C (d) 15sin⁡−2(5x)+C\dfrac{1}{5}\sin^{-2}(5x)+C

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