જો $\tan 7 \theta \cdot \tan 3 \theta = 1$ હોય,તો $\theta$ ની કિંમત .......... છે.

  • A
    $30$
  • B
    $18$
  • C
    $15$
  • D
    $9$

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Similar Questions

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

$\tan ^{2} \theta - \sec ^{2} \theta = \ldots \ldots \ldots$

જો $2 \sin^{2} \theta - \cos^{2} \theta = 2$ હોય,તો $\theta$ ની કિંમત શોધો. ($^{\circ}$ માં)

જો $3 \sin \theta = 4 \cos \theta$ હોય,તો $\tan \theta = \ldots$

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

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