यदि $0 < \theta < 90$ और $\sin \theta = \cos 30$ है,तो $2 \tan^2 \theta - 1 = \dots$

  • A
    $5$
  • B
    $4$
  • C
    $3$
  • D
    $0$

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Similar Questions

व्यंजक का मान ज्ञात कीजिए: $8 \sin^{2} 45^{\circ} - 2 \tan^{2} 60^{\circ} + 3 \cot^{2} 30^{\circ} - 2 \cos^{2} 45^{\circ}$

यदि $\operatorname{cosec} \theta = \sqrt{2}$ है,तो $\tan \theta$ का मान ज्ञात कीजिए:

$\tan 15^{\circ}$ और $\ldots \ldots \ldots \ldots$ का मान बराबर है।

मान ज्ञात कीजिए:
$\frac{\sin 18^{\circ}}{\cos 72^{\circ}}$

मान ज्ञात कीजिए:
$\frac{\sin ^{2} 63^{\circ}+\sin ^{2} 27^{\circ}}{\cos ^{2} 17^{\circ}+\cos ^{2} 73^{\circ}}$

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