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int1/(sqrt(3-6x-9x^2))dxis equal to...

`int1/(sqrt(3-6x-9x^2))dx`is equal to

A

`sin^(-1)((3x+1)/2)+c`

B

`sin^(-1)((3x+1)/6)+c`

C

`1/3sin^(-1)((3x+1)/sqrt(2))+c`

D

`sin^(-1)((2x+1)/2)+c`

Text Solution

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The correct Answer is:
C
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