यदि $4(\sin 2x \sin 4x + \sin^2 x) = 3$ है,तो $x =$

  • A
    $\frac{n \pi}{3} \pm \frac{\pi}{9}, n \in Z$
  • B
    $\frac{n \pi}{3} \pm \frac{2 \pi}{9}, n \in Z$
  • C
    $\frac{n \pi}{3} + (-1)^n \frac{\pi}{9}, n \in Z$
  • D
    $\frac{n \pi}{3} + (-1)^n \frac{2 \pi}{9}, n \in Z$

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$x$ के उन मानों की संख्या क्या है जिनके लिए $\sin 2x + \cos 4x = 2$ है?

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