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Evaluate int sin x cosx * cos 2x * cos ...

Evaluate `int sin x cosx * cos 2x * cos 4x dx`

Text Solution

Verified by Experts

The correct Answer is:
`(-cos8x)/(64)+C`
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Knowledge Check

  • int sin4x cosx cos6x dx=

    A
    `(1)/(4)(cosx+(cos3x)/(3)+(cos9x)/(9)+(cos11x)/(11))+c`
    B
    `(1)/(4)(cosx-(cos3x)/(3)-(cos9x)/(9)+(cos11x)/(11))+c`
    C
    `(1)/(4)(cosx-(cos3x)/(3)+(cos9x)/(9)-(cos11x)/(11))+c`
    D
    `(1)/(4)(cosx+(cos3x)/(3)-(cos9x)/(9)-(cos11x)/(11))+c`

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