જો $\tan \beta = \cos \theta \tan \alpha$ હોય,તો ${\tan ^2}\frac{\theta }{2} = $

  • A
    $\frac{\sin (\alpha + \beta )}{\sin (\alpha - \beta )}$
  • B
    $\frac{\cos (\alpha - \beta )}{\cos (\alpha + \beta )}$
  • C
    $\frac{\sin (\alpha - \beta )}{\sin (\alpha + \beta )}$
  • D
    $\frac{\cos (\alpha + \beta )}{\cos (\alpha - \beta )}$

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જો $\sin x + \csc x = 2$ હોય,તો $\sin^n x + \csc^n x$ ની કિંમત કેટલી થાય?

જો $\sin ^{2} \alpha+\sin ^{2} \beta=2$ હોય,તો $\cos \left(\frac{\alpha+\beta}{2}\right)$ ની કિંમત કેટલી થાય?

જો $\sin \theta = \frac{12}{13}$ જ્યાં $0 < \theta < \frac{\pi}{2}$ અને $\cos \phi = -\frac{3}{5}$ જ્યાં $\pi < \phi < \frac{3\pi}{2}$ હોય,તો $\sin(\theta + \phi)$ ની કિંમત શોધો.

$\cos 41^{\circ} \cdot \cos 42^{\circ} \cdot \cos 43^{\circ} \cdot \cos 44^{\circ} \cdot \cos 45^{\circ} \cdot \cos 46^{\circ} \cdot \cos 47^{\circ} \cdot \cos 48^{\circ} \cdot \cos 49^{\circ}$ ની કિંમત શોધો.

$\frac{1}{{\tan 3A - \tan A}} - \frac{1}{{\cot 3A - \cot A}} = $

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