$\frac{\tan 40^{\circ}+\tan 20^{\circ}}{1-\cot 70^{\circ} \cot 50^{\circ}}$ નું મૂલ્ય કેટલું થાય?

  • A
    $\sqrt{3}$
  • B
    $\sqrt{2}$
  • C
    $\frac{1}{\sqrt{3}}$
  • D
    $\frac{1}{\sqrt{2}}$

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$\frac{1}{\sqrt{2}} \sin \frac{\pi}{6} \cos \frac{\pi}{4} - \cot \frac{\pi}{3} \sec \frac{\pi}{6} + \frac{5 \tan \frac{\pi}{4}}{12 \sin \frac{\pi}{2}}$ નું મૂલ્ય કેટલું થાય?

ખોટું વિધાન (વિધાનો) પસંદ કરો.

જો $A + B + C = \pi$ હોય,તો $\frac{{\cos A}}{{\sin B\sin C}} + \frac{{\cos B}}{{\sin C\sin A}} + \frac{{\cos C}}{{\sin A\sin B}} = $

$\frac{\tan 70^\circ - \tan 20^\circ}{\tan 50^\circ}$ નું મૂલ્ય શોધો.

$\tan 57^{\circ} - \tan 12^{\circ} - \tan 57^{\circ} \tan 12^{\circ}$ નું મૂલ્ય કેટલું થાય?

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