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int(a^(-x)-b^(-x))dx =...

`int(a^(-x)-b^(-x))dx =`

A

`(a^(-x))/log a-(b^(-x))/log b`

B

`(a^(-x)-b^(-x)) (log a - log b)`

C

`(b^(-x))/log b - (a^(-x))/log a`

D

`b^(-x)-a^(-x)`

Text Solution

Verified by Experts

The correct Answer is:
C
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