જો $\frac{2\sin \alpha}{1 + \cos \alpha + \sin \alpha} = y$ હોય,તો $\frac{1 - \cos \alpha + \sin \alpha}{1 + \sin \alpha} = $

  • A
    $1/y$
  • B
    $y$
  • C
    $1 - y$
  • D
    $1 + y$

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$\cos^{3}\left(\frac{\pi}{8}\right) \cdot \cos\left(\frac{3\pi}{8}\right) + \sin^{3}\left(\frac{\pi}{8}\right) \cdot \sin\left(\frac{3\pi}{8}\right)$ ની કિંમત શોધો.

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$\frac{3 + \cot 76^{\circ} \cot 16^{\circ}}{\cot 76^{\circ} + \cot 16^{\circ}}$ નું મૂલ્ય શોધો.

$\sin 50^\circ - \sin 70^\circ + \sin 10^\circ = $

જો $5 \sin \theta = 3$ હોય,તો $\frac{\sec \theta - \tan \theta}{\sec \theta + \tan \theta}$ નું સંખ્યાત્મક મૂલ્ય શોધો.

જો $\tan \theta = \frac{\cos 15^{\circ} + \sin 15^{\circ}}{\cos 15^{\circ} - \sin 15^{\circ}}$ હોય,તો $\theta =$

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