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int(dx)/((x^(2)+4x+8))...

`int(dx)/((x^(2)+4x+8))`

A

`2 tan ^(-1)(x+2)+c`

B

`2 tan ^(-1)(x+4)+c`

C

`(1)/(2)tan ^(-1)((x+2)/(4))+c`

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
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