જો $u = \log \tan \left(\frac{\pi}{4} + \frac{\theta}{2}\right)$ હોય,તો $\cosh u =$

  • A
    $\sec \theta$
  • B
    $\tan \theta$
  • C
    $\operatorname{cosec} \theta$
  • D
    $\cot \theta$

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Similar Questions

$\sum_{k=1}^3 \cos^2 \left((2k-1) \frac{\pi}{12}\right)$ ની કિંમત શોધો.

$\cos ^2(x)+\cos ^2\left(x+\frac{\pi}{3}\right)+\cos ^2\left(x-\frac{\pi}{3}\right) = $

ધારો કે $\alpha = 3 + 4 + 8 + 9 + 13 + 14 + \dots$ $40$ પદો સુધી છે. જો $(\tan \beta)^{1020}$ એ સમીકરણ $x^2 + x - 2 = 0$ નું બીજ હોય, જ્યાં $\beta \in (0, \frac{\pi}{2})$, તો $\sin^2 \beta + 3 \cos^2 \beta$ ની કિંમત શોધો:

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

$\sum_{k=1}^3 \cos ^2\left((2 k-1) \frac{\pi}{12}\right)$ ની કિંમત શોધો.

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