\(\int \frac{f^{'}(x)}{f(x)}dx=\)
Answer & explanation
Correct answer: option 1
Put \(f(x)=t\)
$ f'(x) . dx = dt$
$\Rightarrow \int{\frac{dt}{t}} = lnt + C = ln |f(x)| + C$$
\(\int \frac{f^{'}(x)}{f(x)}dx=\)
Correct answer: option 1
Put \(f(x)=t\)
$ f'(x) . dx = dt$
$\Rightarrow \int{\frac{dt}{t}} = lnt + C = ln |f(x)| + C$$