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int cos x cos 2x cos 3x dx=...

`int cos x cos 2x cos 3x dx=`

Text Solution

Verified by Experts

The correct Answer is:
`(1)/(4)[(sin6x)/(6)+(sin4x)/(4)+(sin2x)/(2)+x]+c`
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Evaluate the following integral int e^(2x) cos x cos 3x dx

Differentiate the functions given in Exercises 1 to 11 w.r.t. x. cos x. cos 2x. Cos 3x .

Knowledge Check

  • int cos 4x cos 3x dx=

    A
    `(1)/(2)[-(1)/(7) sin 7x+sin ]+c`
    B
    `(1)/(2)[(1)/(7) sin 7x+sin ]+c`
    C
    `(1)/(2)[(1)/(7) sin 7x-sin ]+c`
    D
    none

  • 1+ cos 2x + cos 4 x+ cos 6x- 4 cos x cos 2x cos 3x =

    A
    `1`
    B
    `-1`
    C
    `2`
    D
    `0`

  • int sin 5x cos 3x dx=

    A
    `(1)/(2)[(cos 2x)/(2)+(1)/(8) cos 8x]+c`
    B
    `(1)/(2)[-(cos 2x)/(2)+(1)/(8) cos 8x]+c`
    C
    `(1)/(2)[-(cos 2x)/(2)-(1)/(8) cos 8x]+c`
    D
    none

    • Similar Questions

    Explore conceptually related problems

    Evalute the following integrals int cos x cos 2x dx

    Evalute the following integrals int cos x cos 3 x dx

    Show that int_(0)^(pi//4) x cos x cos 3 x dx = (pi-3)/(16)

    int e^(x) sin 3x cos 2x dx=

    int sin 4x cos 3x dx =

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