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int dx/(x(9+x^(2))) =...

`int dx/(x(9+x^(2))) =`

A

`1/9 log((x^(2))/(9+x^(2)))`

B

`1/9 log((9+x^(2))/x^(2))`

C

`1/18 log((x^(2))/(9+x^(2)))`

D

`1/18 t(an^(-1))x/3+log x`

Text Solution

Verified by Experts

The correct Answer is:
C
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