જો $3 \cos \theta + 4 \sin \theta = 5$ હોય,તો $3 \sin \theta - 4 \cos \theta$ ની કિંમત શોધો.

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

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જો $\sec \theta = m$ અને $\tan \theta = n$ હોય,તો $\frac{1}{m} \left[ m + n + \frac{1}{m + n} \right] = $

$16 \sin(20^{\circ}) \sin(40^{\circ}) \sin(80^{\circ})$ ની કિંમત શોધો.

પદાવલિ $\cos^2(A - B) + \cos^2 B - 2\cos(A - B)\cos A\cos B$ એ

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જો $1-\cot 23^{\circ}=\frac{x}{1-\cot 22^{\circ}}$ હોય,તો $x=$

$\tan 9^{\circ} - \tan 27^{\circ} - \tan 63^{\circ} + \tan 81^{\circ}$ ની કિંમત $............$ છે.

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