$\cot\, x + \cot\, (60^\circ + x) + \cot\, (120^\circ + x)$ ની કિંમત કોના બરાબર છે?

  • A
    $\cot\, 3x$
  • B
    $\tan\, 3x$
  • C
    $3\, \cot\, 3x$
  • D
    $3\, \tan\, 3x$

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$\tan 5x - \tan 3x - \tan 2x$ ની કિંમત શું થાય?

જો $x \cos \theta - \sin \theta = 1$ હોય,તો $x^2 - (1 + x^2) \sin \theta$ ની કિંમત શોધો.

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જો $\tan \theta = \frac{\cos 15^{\circ} + \sin 15^{\circ}}{\cos 15^{\circ} - \sin 15^{\circ}}$ હોય,તો $\theta =$

$5 \cos \theta + 3 \cos \left( \theta + \frac{\pi}{3} \right) - 1$ ની મહત્તમ કિંમત શોધો.

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