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

  • A
    $0$
  • B
    $1$
  • C
    $2$
  • D
    $3$

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જો $\cos x + \cos y - \cos (x + y) = \frac{3}{2}$ હોય,તો

$\cos 12^{\circ} + \cos 60^{\circ} + \cos 84^{\circ} + \cos 132^{\circ} + \cos 156^{\circ} = $

જો $f(x) = \frac{\cos^2 x + \sin^4 x}{\sin^2 x + \cos^4 x}$,$x \in R$ માટે,તો $f(2002)$ ની કિંમત કેટલી થાય?

જો $A = \sin \theta |\sin \theta|$,$B = \cos \theta |\cos \theta|$ અને $\frac{99 \pi}{2} \leq \theta \leq \frac{100 \pi}{2}$ હોય,તો

$\cos 20^{\circ} + 2 \sin^2 55^{\circ} - \sqrt{2} \sin 65^{\circ}$ નું મૂલ્ય શોધો.

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