જો $\theta$ ત્રીજા ચરણમાં હોય,તો $\sqrt{4 \sin ^4 \theta+\sin ^2 2 \theta}+4 \cos ^2\left(\frac{\pi}{4}-\frac{\theta}{2}\right)=$

  • A
    $1+2 \sin \theta$
  • B
    $2$
  • C
    $1$
  • D
    $2+4 \sin \theta$

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કિંમત શોધો: $(\cos 252^{\circ} - \sin 126^{\circ})(\cos 252^{\circ} + \sin 126^{\circ})(\sin^2 126^{\circ} + \sin^2 186^{\circ} + \sin^2 66^{\circ})$

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

$x$ (અંશમાં) ની સૌથી નાની ધન કિંમત શોધો જેના માટે $\tan(x+100^{\circ}) = \tan(x+50^{\circ}) \tan(x) \tan(x-50^{\circ})$ થાય. ($^{\circ}$ માં)

$\frac{1+\cos \theta-\sin \theta}{1+\cos \theta+\sin \theta}+\frac{1+\cos \theta+\sin \theta}{1+\cos \theta-\sin \theta}=$

જો $\sin A, \cos A$ અને $\tan A$ એ $G.P.$ માં હોય,તો $\cos^3 A + \cos^2 A$ ની કિંમત શોધો.

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