MCQ
$\int \frac{d x}{x \log _e x}$ का मान होगा$-$
  • A
    $|\log x|+C$
  • B
    $\frac{1}{x}+ C$
  • $\log |\log x|+C$
  • D
    $-\frac{1}{x^2}+ C$

Answer

Correct option: C.
$\log |\log x|+C$
$\log |\log x|+C$
$\int \frac{d x}{x \log _e x} \quad$ माना $\log _{ e } x=t$
$\frac{1}{x} d x=d t$
$\therefore$$\quad$$ \int \frac{d t}{t} =\log |t|+C$
$ =\log |\log x|+C$

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