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 $\frac{1}{6} \sin \theta, \cos \theta, \tan \theta$ એ $G.P.$ માં હોય,તો $\theta$ નો વ્યાપક ઉકેલ શોધો.

$\sqrt{3} \, \text{cosec} \, 20^\circ - \text{sec} \, 20^\circ$ ની કિંમત શું છે?

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$\frac{\sqrt{3}\text{cosec } 20^{\circ}-\sec 20^{\circ}}{\cos 20^{\circ}\cos 40^{\circ}\cos 60^{\circ}\cos 80^{\circ}}$ નું મૂલ્ય કેટલું થાય?

$2(\sin^6 \theta + \cos^6 \theta) - 3(\sin^4 \theta + \cos^4 \theta) + 1$ ની કિંમત શોધો.

$(\sec A + \tan A - 1)(\sec A - \tan A + 1) - 2\tan A = $

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