$(\tan 1^{\circ} \tan 2^{\circ} \tan 3^{\circ} \ldots \tan 89^{\circ})$ નું મૂલ્ય કેટલું છે?

  • A
    $0$
  • B
    $1$
  • C
    $2$
  • D
    $\frac{1}{2}$

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નીચેના નિત્યસમ સાબિત કરો,જ્યાં ખૂણાઓ લઘુકોણ છે જેના માટે પદાવલિઓ વ્યાખ્યાયિત છે:
$\frac{\sin \theta - 2 \sin^3 \theta}{2 \cos^3 \theta - \cos \theta} = \tan \theta$

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પદાવલિ $\left[\frac{\sin ^{2} 22^{\circ}+\sin ^{2} 68^{\circ}}{\cos ^{2} 22^{\circ}+\cos ^{2} 68^{\circ}}+\sin ^{2} 63^{\circ}+\cos 63^{\circ} \sin 27^{\circ}\right]$ ની કિંમત શોધો.

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

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

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

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