$\frac{d}{dx} \left( x^3 \tan^2 \frac{x}{2} \right) =$

  • A
    $x^3 \tan \frac{x}{2} \sec^2 \frac{x}{2} + 3x \tan^2 \frac{x}{2}$
  • B
    $x^3 \tan \frac{x}{2} \sec^2 \frac{x}{2} + 3x^2 \tan^2 \frac{x}{2}$
  • C
    $x^3 \tan^2 \frac{x}{2} \sec^2 \frac{x}{2} + 3x^2 \tan^2 \frac{x}{2}$
  • D
    આમાંથી કોઈ નહીં

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