જો $\tan A = \frac{1 - \cos B}{\sin B}$ હોય,તો $\tan 2A =$

  • A
    $\tan B$
  • B
    $\cot B$
  • C
    $2 \tan B$
  • D
    $2 \cot B$

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જો $x \sin \theta = y \sin \left( \theta + \frac{2\pi}{3} \right) = z \sin \left( \theta + \frac{4\pi}{3} \right)$ હોય,તો:

$\Delta ABC$ માં,$\sin A \cos B \cos C + \sin B \cos C \cos A + \sin C \cos A \cos B$ નું મૂલ્ય શું છે?

જો $A + C = B$ હોય,તો $\tan A \tan B \tan C = $

જો $\sin 3A = \cos (A - 26^{\circ})$ હોય,જ્યાં $3A$ એ લઘુકોણ છે,તો $A$ નું મૂલ્ય ($^{\circ}$ માં) શોધો.

જો $\cos \theta + \sin \theta = \sqrt{2} \cos \theta$ હોય,તો $\cos \theta - \sin \theta =$

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