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The value of int(cos 5x+cos 4x)/(1-2 c...

The value of `int(cos 5x+cos 4x)/(1-2 cos 3 x)dx`, is

A

`sin x+ sin2x+C`

B

`sin x-(sin 2x)/(2)+C`

C

`-sin x-(sin2x)/(2)+C`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • The value of int (cos 7x-cos 8x)/(1+2 cos 5x)dx , is

    A
    `(sin 2x)/(2)+(cos 3x)/(3)+C`
    B
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    C
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    D
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    A
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    B
    -`(2)/(3)sin^(-1)(cos^(3//2)x)+C`
    C
    `(2)/(5)sin^(-1)(sec^(5//2)x)+C`
    D
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