Question

2. The value of intigration of cos^3x + cos3x.dx is
(a) sin x - 6tan (sin x) + c
(b) sin x - 2 (sin x)-? + c
(c) sin x - 2 (sin x)-1 - 6tan? (sin x) + c
(d) sin x – 2 (sin x)-1 + 5tan-(sin x) + c​

Answer 1

Answer:

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