$\sin^6 \theta + \cos^6 \theta + 3 \sin^2 \theta \cos^2 \theta = $

  • A
    $0$
  • B
    $-1$
  • C
    $1$
  • D
    इनमें से कोई नहीं

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$\sin \theta + \cos \theta$ का मान कब अधिकतम होगा?

यदि $\cos A = \frac{3}{4}$ है,तो $32\sin \left( \frac{A}{2} \right)\sin \left( \frac{5A}{2} \right) = $

$\sin ^4 \frac{\pi}{8} + \sin ^4 \frac{3\pi}{8} + \sin ^4 \frac{5\pi}{8} + \sin ^4 \frac{7\pi}{8} = $

यदि $12a + 5b = 9$,जहाँ $a, b \in R$ है,तो $a^2 + b^2$ का न्यूनतम मान क्या होगा?

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