જો $2y \cos \theta = x \sin \theta$ અને $2x \sec \theta - y \csc \theta = 3$ હોય,તો $x^2 + 4y^2 = $

  • A
    $4$
  • B
    $-4$
  • C
    $\pm 4$
  • D
    આમાંથી કોઈ નહીં

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જો $\tan \theta \cdot \tan 2 \theta = 1$ હોય,તો $\sin ^{2} 2 \theta + \tan ^{2} 2 \theta$ ની કિંમત શોધો.

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નીચેનામાંથી કયું સાચું છે?

જો $\sin 2\theta + \sin 2\phi = 1/2$ અને $\cos 2\theta + \cos 2\phi = 3/2$ હોય,તો $\cos^2(\theta - \phi) = $

$\tan 57^{\circ} - \tan 12^{\circ} - \tan 57^{\circ} \tan 12^{\circ}$ નું મૂલ્ય કેટલું થાય?

જો $5 \tan \theta = 4$ હોય,તો $\frac{5 \sin \theta - 3 \cos \theta}{5 \sin \theta + 2 \cos \theta} = $

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