$\frac{e^{4x} + e^{-4x} + 14}{4(e^x - e^{-x})^2} = \dots$

  • A
    $\sinh^2 x + \coth^2 x$
  • B
    $\sinh^2 x + \text{sech}^2 x$
  • C
    $\cosh^2 x + \text{sech}^2 x$
  • D
    $\cosh^2 x + \tanh^2 x$

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Similar Questions

$\frac{1}{4} \tan \frac{\pi}{8} + \frac{1}{8} \tan \frac{\pi}{16} + \frac{1}{16} \tan \frac{\pi}{32} + \dots \infty$ પદોનું મૂલ્ય કેટલું થાય?

પદાવલિનું મૂલ્ય શોધો: $\sum \frac{1}{1 + x^{a-b} + x^{a-c}}$

Difficult
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જો $1+\sqrt{1+a}=(1+\sqrt{1-a}) \cot \alpha$ અને $0 < a < 1$ હોય,તો $\sin 4 \alpha=$

$\frac{\sin 1^{\circ}+\sin 2^{\circ}+\ldots+\sin 89^{\circ}}{2(\cos 1^{\circ}+\cos 2^{\circ}+\ldots+\cos 44^{\circ})+1} = $

$\sqrt{3} \operatorname{cosec} 20^{\circ} - \sec 20^{\circ}$ ની કિંમત શોધો.

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