NCERT Example 1 - Integrals

Question: Write an antiderivative by inspection: (i) cos 2x (ii) 3x^2 + 4x^3 (iii) 1/x, x != 0.

Answer: (i) (1/2) sin 2x + C; (ii) x^3 + x^4 + C; (iii) log|x| + C.

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

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