MCQ
$\int\frac{2\text{dx}}{\sqrt{1-4\text{x}^2}}=$
  • A
    $\tan^{-1}(2\text{x})+\text{c}$
  • B
    $\cot^{-1}(2\text{x})+\text{c}$
  • C
    $\cos^{-1}(2\text{x})+\text{c}$
  • $\sin^{-1}(2\text{x})+\text{c}$

Answer

Correct option: D.
$\sin^{-1}(2\text{x})+\text{c}$

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