જો $A = 130^\circ$ અને $x = \sin A + \cos A$ હોય,તો

  • A
    $x > 0$
  • B
    $x < 0$
  • C
    $x = 0$
  • D
    $x \le 0$

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જો $A$ ત્રીજા ચરણમાં હોય અને $3\tan A - 4 = 0$ હોય,તો $5\sin 2A + 3\sin A + 4\cos A = $

$\sin (\beta + \gamma - \alpha ) + \sin (\gamma + \alpha - \beta ) + \sin (\alpha + \beta - \gamma ) - \sin (\alpha + \beta + \gamma ) = $

જો $A + B + C = 180^o$ હોય,તો $\cot \frac{A}{2} + \cot \frac{B}{2} + \cot \frac{C}{2}$ નું મૂલ્ય કેટલું થાય?

$\frac{{\cos {{10}^o} + \sin {{10}^o}}}{{\cos {{10}^o} - \sin {{10}^o}}} = $

$\frac{(\tan 69^{\circ} + \tan 66^{\circ})}{(1 - \tan 69^{\circ} \tan 66^{\circ})}$ ની કિંમત શોધો.

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