જો $x = \sec \phi - \tan \phi$ અને $y = \csc \phi + \cot \phi$ હોય,તો:

  • A
    $x = \frac{y + 1}{y - 1}$
  • B
    $x = \frac{y - 1}{y + 1}$
  • C
    $y = \frac{1 - x}{1 + x}$
  • D
    આમાંથી કોઈ નહીં

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જો $\sin A + \sin B = \frac{1}{2}$ અને $\cos A + \cos B = 1$ હોય,તો $\sin \left(\frac{A-B}{2}\right)$ ની કિંમત શોધો.

જો $\sin \theta + \cos \theta = m$ અને $\sec \theta + \text{cosec} \theta = n$ હોય,તો $n(m + 1)(m - 1) = $

કિંમત શોધો: $\cos^2 76^\circ + \cos^2 16^\circ - \cos 76^\circ \cos 16^\circ$

સરવાળો $S = \sin \theta + \sin 2\theta + \dots + \sin n\theta$ બરાબર શું થાય?

Difficult
View Solution

$\frac{\sqrt{2} \cos 45^{\circ}+\cos 56^{\circ}+\cos 58^{\circ}-\cos 66^{\circ}}{\sqrt{2} \cos 28^{\circ} \cos 29^{\circ} \sin 33^{\circ}} = ?$

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