MCQ
$\int \frac{\sec ^2(\log x)}{x} d x=?$
  • A
    $\log (\tan x)+C$
  • B
    $-\log (\tan x)+C$
  • C
    $\tan (\tan x)+C$
  • $\tan (\log x)+C$

Answer

Correct option: D.
$\tan (\log x)+C$
D

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