See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

        /2 n 2 n n n 0 cos x sin x I n, sinxcosx sin x cos x       dx    /2 n 2 n 2 n n n 0 1 cos x sin x sin x cos x sinxcosx 2 sin x cos x         dx   /2 /2 n n n 1 0 0 1 1 sinxcosx dx sin 2x 2 2        dx =       /2 n n 1 n 1 n 1 n 1 0 2 1 1 n 1 n 3 ....2 1 sin t dt n n 2 n 4 ...1 2 2 4n C             (when n is odd).