જો $\cos 9 \alpha = \sin \alpha$ અને $9 \alpha < 90^{\circ}$ હોય,તો $\tan 5 \alpha$ ની કિંમત શોધો.

  • A
    $\frac{1}{\sqrt{3}}$
  • B
    $\sqrt{3}$
  • C
    $1$
  • D
    $0$

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Similar Questions

સાબિત કરો કે,
$\frac{\sin \theta}{1+\cos \theta}+\frac{1+\cos \theta}{\sin \theta}=2 \operatorname{cosec} \theta$

જો $A = 30^{\circ}$ હોય,તો $\cos 2A$ ની કિંમત $\ldots \ldots \ldots$ થાય.

જો $\tan ^{2} \theta = \sin ^{2} \theta + \cos ^{2} \theta$ હોય,તો $\theta = \ldots$ ($^{\circ}$ માં)

$\operatorname{cosec} 40^{\circ} = \ldots \ldots \ldots \ldots$

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

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