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int (f(x)phi'(x)-phi(x)f'(x))/(f(x)phi(x...

`int (f(x)phi'(x)-phi(x)f'(x))/(f(x)phi(x)) {logphi(x) - logf(x)} dx` is

A

`"log"(phi(x))/(f(x))` + c

B

`1/2 {"log" (phi(x))/f(x)}^2 + c`

C

`(phi(x))/f(x) "log"[(phi(x))/(f(x))]+c`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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