यदि $\theta$ अंतराल $\left(0, \frac{\pi}{2}\right)$ में है और समीकरण $\cos 2 \theta \cdot \sec ^4 \theta + \sec ^2 \theta = 0$ को संतुष्ट करता है,तो $\sin ^2 \theta =$

  • A
    $\frac{1}{3}$
  • B
    $\frac{3}{4}$
  • C
    $\frac{1}{2}$
  • D
    $\frac{2}{3}$

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यदि $f(x) = \frac{\cos^2 x + \sin^4 x}{\sin^2 x + \cos^4 x}$,$x \in R$ के लिए,तो $f(2002)$ का मान क्या होगा?

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