જો $|\sin \alpha - \cos \alpha| = \frac{3}{4}$ હોય,તો $|\sec 2\alpha - \tan 2\alpha| = $

  • A
    $\frac{12}{17}$
  • B
    $\frac{4}{\sqrt{23}}$
  • C
    $\frac{3}{\sqrt{23}}$
  • D
    $\frac{7}{\sqrt{23}}$

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ધારો કે $\frac{\pi}{2} < x < \pi$ એવું છે કે જેથી $\cot x = \frac{-5}{\sqrt{11}}$. તો $\left(\sin \frac{11x}{2}\right)(\sin 6x - \cos 6x) + \left(\cos \frac{11x}{2}\right)(\sin 6x + \cos 6x)$ ની કિંમત શોધો.

$16 \sin(20^{\circ}) \sin(40^{\circ}) \sin(80^{\circ})$ ની કિંમત શોધો.

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$\left( {1 + \cos \frac{\pi }{8}} \right)\,\left( {1 + \cos \frac{{3\pi }}{8}} \right)\,\left( {1 + \cos \frac{{5\pi }}{8}} \right)\,\left( {1 + \cos \frac{{7\pi }}{8}} \right) = $

જો $e^{\sin x}-e^{-\sin x}-4=0$ હોય, તો $x$ ની વાસ્તવિક કિંમતોની સંખ્યા કેટલી છે?

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