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Evaluate: int(sinx)/(sin4x)dx...

Evaluate: `int(sinx)/(sin4x)dx`

A

`1/4 log | (sin x -1)/( sin x +1)| - (1)/(sqrt2) log | (sqrt2sin x -1)/( sqrt2 sin x +1)|+C`

B

`1/8 log | (sin x -1)/( sin x +1)| - (1)/(2sqrt2) log | (sqrt2sin x -1)/( sqrt2 sin x +1)|+C`

C

`1/8 log | (sin x -1)/( sin x +1)| - (1)/(4sqrt2) log | (sqrt2sin x -1)/( sqrt2 sin x +1)|+C`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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DISHA PUBLICATION-INTEGRALS -EXERCISE-1 CONCEPT BUILDER
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