કોઈપણ વાસ્તવિક કિંમત $\theta$ માટે $3 \cos \theta + 5 \sin \left( \theta - \frac{\pi}{6} \right)$ ની મહત્તમ કિંમત કેટલી છે?

  • A
    $\sqrt{19}$
  • B
    $\frac{\sqrt{79}}{2}$
  • C
    $\sqrt{34}$
  • D
    $\sqrt{31}$

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$\frac{{\sin 3A - \cos \left( {\frac{\pi }{2} - A} \right)}}{{\cos A + \cos (\pi + 3A)}} = $

જો $a \cos 2\theta + b \sin 2\theta = c$ ના ઉકેલો $\alpha$ અને $\beta$ હોય,તો $\tan \alpha + \tan \beta$ ની કિંમત શોધો.

$\frac{\tan \theta}{1-\cot \theta}+\frac{\cot \theta}{1-\tan \theta}$ ની કિંમત શોધો.

$\csc \frac{\pi}{18} - \sqrt{3} \sec \frac{\pi}{18}$ ની કિંમત એ એક

જો $\sqrt x + \frac{1}{{\sqrt x }} = 2\cos \theta$ હોય,તો ${x^6} + {x^{ - 6}} = $

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