MCQ
$\int\limits_{1/2}^2 {\frac{1}{x}} \sin \left( {x - \frac{1}{x}} \right)dx = $
  • $0$
  • B
    $\frac{3}{4}$
  • C
    $\frac{5}{4}$
  • D
    $2$

Answer

Correct option: A.
$0$
a
Put $X = \frac{1}{t}$ and add both equation

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