જો $2 \cos \theta + \sin \theta = 1$ $\left( \theta \neq \frac{\pi}{2} \right)$ હોય,તો $7 \cos \theta + 6 \sin \theta$ ની કિંમત શોધો.

  • A
    $1/2$
  • B
    $46/5$
  • C
    $11/2$
  • D
    $2$

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જો $5 \sinh x - \cosh x = 5$ હોય,તો $\tanh x$ ની એક કિંમત શોધો.

$(-\pi, \pi)$ માં $x$ ના મૂલ્યો જે સમીકરણ $8^{1+\cos ^2 x+\cos ^4 x+\ldots}=4^3$ નું સમાધાન કરે છે તે કયા છે?

જો $\tanh x = \frac{1}{2}$ હોય,તો $\sinh 2x - \text{sech } 2x = $

પદાવલિ $\frac{1+\sin 2 \alpha}{\cos (2 \alpha-2 \pi) \tan \left(\alpha-\frac{3 \pi}{4}\right)} - \frac{1}{4} \sin 2 \alpha \left[\cot \frac{\alpha}{2}+\cot \left(\frac{3 \pi}{2}+\frac{\alpha}{2}\right)\right]$ ની કિંમત શોધો.

$\frac{1}{\sin 1^{\circ} \sin 2^{\circ}}+\frac{1}{\sin 2^{\circ} \sin 3^{\circ}}+\ldots+\frac{1}{\sin 89^{\circ} \sin 90^{\circ}} = $

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