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Evaluate: int(cos5x+cos4x)/(1-2cos3x)dx...

Evaluate: `int(cos5x+cos4x)/(1-2cos3x)dx`

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To evaluate the integral \[ \int \frac{\cos 5x + \cos 4x}{1 - 2\cos 3x} \, dx, \] we will follow these steps: ...
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Knowledge Check

  • 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

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