$\operatorname{Sech}^{-1}(\sin \alpha) =$

  • A
    $\log \left(\sin \alpha + \sqrt{\sin^2 \alpha - 1}\right)$
  • B
    $\log (\tan \alpha + 1)$
  • C
    $\log \left(\cot \frac{\alpha}{2}\right)$
  • D
    $\log \left(\frac{1 + \tan \alpha}{2 \sin \alpha}\right)$

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Similar Questions

$x$ ની કઈ કિંમત માટે $\cos x > \sin x$ થાય,જ્યાં $x \in \left( \frac{\pi}{2}, \frac{3\pi}{2} \right)$?

જો $\sin \theta + \cos \theta = m$ અને $\sec \theta + \text{cosec} \theta = n$ હોય,તો $n(m + 1)(m - 1) = $

જો $\cos \left(\frac{\alpha-\beta}{2}\right)=2 \cos \left(\frac{\alpha+\beta}{2}\right)$ હોય,તો $\tan \frac{\alpha}{2} \tan \frac{\beta}{2}=$

સમીકરણ $\frac{1}{\sin(\frac{\pi}{n})} = \frac{1}{\sin(\frac{2\pi}{n})} + \frac{1}{\sin(\frac{3\pi}{n})}$ નું સમાધાન કરતું $n > 3$ નું ધન પૂર્ણાંક મૂલ્ય શોધો.

જો $x = a \cos^3 \theta$ અને $y = b \sin^3 \theta$ હોય,તો:

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