જો $3 \sin \theta + 4 \cos \theta = 3$ અને $\theta \neq (2n + 1) \frac{\pi}{2}$ હોય,તો $\sin 2 \theta = $

  • A
    $\frac{336}{625}$
  • B
    $-\frac{7}{25}$
  • C
    $\frac{24}{25}$
  • D
    $-\frac{336}{625}$

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જો $\sin^4 \alpha + 4 \cos^4 \beta + 2 = 4\sqrt{2} \sin \alpha \cos \beta$ અને $\alpha, \beta \in [0, \pi]$ હોય,તો $\cos(\alpha + \beta)$ ની કિંમત શોધો.

${\left( \frac{\cos A + \cos B}{\sin A - \sin B} \right)^n} + {\left( \frac{\sin A + \sin B}{\cos A - \cos B} \right)^n}$ ($n$ એ પૂર્ણાંક છે) $=$

જો $3 \sin^{2} x - 8 \sin x + 4 = 0$ અને $x \in \left(\frac{\pi}{2}, \pi\right)$ હોય,તો $\tan x = $

જો $\sin \theta + \sin \phi = a$ અને $\cos \theta + \cos \phi = b$ હોય,તો $\tan \frac{\theta - \phi}{2}$ ની કિંમત શોધો.

જો $\tan A = \tan \alpha \coth x = \cot \beta \tanh x$ હોય,તો $\tan (\alpha + \beta) =$

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