$\int {\sqrt {{x^2} + {a^2}} \,dx} $ का मान ज्ञात कीजिए।

  • A
    $\frac{x}{2}\sqrt {{x^2} + {a^2}} - \frac{{{a^2}}}{2}\log \left| x + \sqrt {{x^2} + {a^2}} \right| + C$
  • B
    $\frac{x}{2}\sqrt {{x^2} + {a^2}} + \frac{{{a^2}}}{2}\log \left| x + \sqrt {{x^2} + {a^2}} \right| + C$
  • C
    $\frac{x}{2}\sqrt {{x^2} + {a^2}} - \frac{{{a^2}}}{2}\log \left| x - \sqrt {{x^2} + {a^2}} \right| + C$
  • D
    $\frac{x}{2}\sqrt {{x^2} + {a^2}} + \frac{{{a^2}}}{2}\log \left| x - \sqrt {{x^2} + {a^2}} \right| + C$

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