$0$ और $\frac{\pi}{2}$ के बीच स्थित $\theta$ का वह मान जो $\left|\begin{array}{ccc} 1+\sin^2 \theta & \cos^2 \theta & 4\sin 4\theta \\ \sin^2 \theta & 1+\cos^2 \theta & 4\sin 4\theta \\ \sin^2 \theta & \cos^2 \theta & 1+4\sin 4\theta \end{array}\right| = 0$ को संतुष्ट करता है,वह है:

  • A
    $\frac{5\pi}{24}$
  • B
    $\frac{7\pi}{24}$
  • C
    $\frac{\pi}{8}$
  • D
    $\frac{3\pi}{8}$

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