यदि $\sin \theta + \cos \theta = p$ और $\sin^3 \theta + \cos^3 \theta = q$ है,तो $p(p^2 - 3)$ का मान ज्ञात कीजिए।

  • A
    $q$
  • B
    $2q$
  • C
    $-q$
  • D
    $-2q$

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यदि $a \cos \theta + b \sin \theta = m$ और $a \sin \theta - b \cos \theta = n$ है,तो ${a^2} + {b^2} = $

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