ज्ञात कीजिए: $\int \cos^{2} x \, dx$

  • A
    $\frac{x}{2} + \frac{1}{4} \sin 2x + C$
  • B
    $\frac{x}{2} - \frac{1}{4} \sin 2x + C$
  • C
    $\frac{x}{2} + \frac{1}{2} \sin 2x + C$
  • D
    $\frac{x}{2} - \frac{1}{2} \sin 2x + C$

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