NCERT Example 7 - Integrals

Question: Find (i) int cos^2 x dx (ii) int sin 2x cos 3x dx (iii) int sin^3 x dx.

Answer: (i) x/2 + (1/4) sin 2x + C; (ii) -(1/10) cos 5x - (1/2) cos x + C; (iii) -cos x + (cos^3 x)/3 + C.

Full step-by-step NCERT solution with diagrams on Something by Zero.

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