$\int \frac{d x}{x(\ln x)^{2}}=$ কত?

$-\frac{1}{\ln x}+k$

$-\frac{2}{\ln x}+\mathrm{k}$

$-\frac{2 x}{\ln x}+k$

$\frac{1}{(\ln x)^{2}}+\mathrm{k}$