CBSE

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

Problem

∫sin⁡5x cos⁡4x dx=\int \sin^5 x\,\cos^4 x\,dx = (a) −15cos⁡5x+27cos⁡7x−19cos⁡9x+c-\frac{1}{5}\cos^5 x+\frac{2}{7}\cos^7 x-\frac{1}{9}\cos^9 x+c (b) 15cos⁡5x+27cos⁡7x−19cos⁡9x+c\frac{1}{5}\cos^5 x+\frac{2}{7}\cos^7 x-\frac{1}{9}\cos^9 x+c (c) 15cos⁡5x+27cos⁡7x+19cos⁡9x+c\frac{1}{5}\cos^5 x+\frac{2}{7}\cos^7 x+\frac{1}{9}\cos^9 x+c (d) None of these

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