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intsec^4 x tanx dx equals :...

`intsec^4` x tanx dx equals :

A

`1/4sec^(4)+x+C`

B

`4sec^(4)x+C`

C

`(sec^(3)x)/3+C`

D

`sec^(3)x+C`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • inte^(x)secx(1+tanx)dx equals

    A
    `e^(x)cosx+C`
    B
    `e^(x)secx+C`
    C
    `e^(x)sinx+C`
    D
    `e^(x)tanx+C`

  • inte^(x)secx(1+tanx)dx equals

    A
    `e^(x)cosx+C`
    B
    `e^(x)secx+C`
    C
    `e^(x)sinx+C`
    D
    `e^(x)tanx+C`

  • If x = 4at, y = at^4 , then (dy)/(dx) equals

    A
    `t^3`
    B
    `4at`
    C
    `4a`
    D
    `4`

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