$x^2 + 2$ के सापेक्ष $(x^2 + 4)^{-1/2}$ का प्रिमिटिव (primitive) किसके बराबर है?

  • A
    $\frac{2}{\sqrt{x^2 + 4}} + C$
  • B
    $\sqrt{x^2 + 4} + \frac{1}{\sqrt{x^2 + 4}} + C$
  • C
    $2\sqrt{x^2 + 4} + C$
  • D
    इनमें से कोई नहीं

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