$0 < \theta < 90$ અને $\sec \theta = \operatorname{cosec} 60^\circ$ હોય,તો $2 \cos^2 \theta - 1$ ની કિંમત ........ છે.

  • A
    $3$
  • B
    $1$
  • C
    $\frac{3}{4}$
  • D
    $\frac{1}{2}$

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Similar Questions

$\sin \theta \cdot \cos (90^\circ - \theta) = \ldots \ldots \ldots$

$\sin 60^{\circ} \cdot \cos 30^{\circ} + \cos 60^{\circ} \cdot \sin 30^{\circ} = ..........$

'True' (સાચું) અથવા 'False' (ખોટું) લખો અને તમારા જવાબનું સમર્થન કરો.
$\frac{\tan 47^{\circ}}{\cot 43^{\circ}}=1$

જો $\tan \theta + \sec \theta = l$ હોય,તો સાબિત કરો કે $\sec \theta = \frac{l^{2} + 1}{2l}$.

જો $\operatorname{cosec} A = \sqrt{10}$ હોય,તો $\sin A = \dots$

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