Evaluate intcos^(4) x dx...

Evaluate `intcos^(4) x dx`

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Verified by Experts

The correct Answer is:

`(3)/(8)x(1)/(4)sin2x+(1)/(32)sin4x+c`

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AAKASH SERIES-INDEFINITE INTEGRALS -PRACTICE EXERCISE

Evaluate intcos^(4) x dx
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int (cos x + x sin x)/(x (x - cos x)) dx=
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int (1)/((e^(x) - e^(-x))^(2)) dx =
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