$\sin 60^{\circ} \sin 45^{\circ} + \cos 60^{\circ} \cos 45^{\circ} = \ldots \ldots \ldots \ldots$

  • A
    $\sqrt{3} + 1$
  • B
    $\frac{\sqrt{3} + 1}{2}$
  • C
    $\frac{\sqrt{6} + \sqrt{2}}{4}$
  • D
    $\frac{1}{2}$

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Similar Questions

यदि $\tan ^{2} \theta = \sin ^{2} \theta + \cos ^{2} \theta$ और $0 < \theta < 90^{\circ}$ है,तो $\theta$ का मान ...... है। ($^{\circ}$ में)

सिद्ध कीजिए कि,
$1 + \frac{\cot^{2} \alpha}{1 + \operatorname{cosec} \alpha} = \operatorname{cosec} \alpha$

$\frac{\sec \theta-1}{\sec \theta+1} = \ldots$

सिद्ध कीजिए कि,$\tan \theta + \tan (90^{\circ} - \theta) = \sec \theta \sec (90^{\circ} - \theta)$

$\tan 15^{\circ}$ और $\ldots \ldots \ldots \ldots$ का मान बराबर है।

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