જો $\frac{5 \sinh 2x}{7+6 \cosh 2x} = \frac{3}{2}$ હોય,તો $3 \tanh^2 x + 20 \tanh x = $

  • A
    $13$
  • B
    $26$
  • C
    $39$
  • D
    $\frac{13}{2}$

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$\cos \frac{\pi}{10} \cos \frac{2\pi}{10} \cos \frac{4\pi}{10} \cos \frac{8\pi}{10} \cos \frac{16\pi}{10}$ નું મૂલ્ય શોધો.

જો $\frac{1}{6} \sin \theta, \cos \theta$ અને $\tan \theta$ સમગુણોત્તર શ્રેણીમાં હોય,તો $\theta$ નો ઉકેલ ગણ શું છે?

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

${\sin ^4}\frac{\pi }{8} + {\sin ^4}\frac{{3\pi }}{8} + {\sin ^4}\frac{{5\pi }}{8} + {\sin ^4}\frac{{7\pi }}{8} = $

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જો $\operatorname{cosec} \theta + \cot \theta = 5$ હોય,તો $\sin \theta = $

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