જો $\sin x + \sin^{2} x = 1$ હોય,તો $\cos^{8} x + 2 \cos^{6} x + \cos^{4} x$ ની કિંમત શોધો.

  • A
    $3$
  • B
    $2$
  • C
    $1$
  • D
    $4$

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Similar Questions

જો $\tan \theta + \sin \theta = m$ અને $\tan \theta - \sin \theta = n$ હોય,તો

જો $\sin 18^{\circ} = \frac{\sqrt{5}-1}{4}$ હોય,તો $\cos ^2 48^{\circ} - \sin ^2 12^{\circ}$ ની કિંમત શોધો.

$\frac{\cos 15^{\circ} \cos^2 22\frac{1}{2}^{\circ} - \sin 75^{\circ} \sin^2 52\frac{1}{2}^{\circ}}{\cos^2 15^{\circ} - \cos^2 75^{\circ}} = $

જો $\sin 10^{\circ} \sin 50^{\circ} \sin 60^{\circ} \sin 70^{\circ} = m$ અને $\tan 20^{\circ} \tan 40^{\circ} \tan 60^{\circ} \tan 80^{\circ} = n$ હોય,તો $\frac{n}{m}$ ની કિંમત શોધો.

વિધાન $(A)$: જો $\sqrt{4 \sin^4 \theta + \sin^2 2\theta} + 4 \cos^2\left(\frac{\pi}{4} - \frac{\theta}{2}\right) = 2$ હોય,તો $\theta$ એ $3^{\text{rd}}$ ચરણ અથવા $4^{\text{th}}$ ચરણમાં આવેલું છે.
કારણ $(R)$: $\sqrt{\sin^2 \theta} = \sin \theta$

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