અંતરાલ $\left( 0, \frac{\pi}{2} \right)$ માં $\sin \left( x + \frac{\pi}{6} \right) + \cos \left( x + \frac{\pi}{6} \right)$ ની મહત્તમ કિંમત કયા બિંદુએ મળે છે?

  • A
    $x = \frac{\pi}{12}$
  • B
    $x = \frac{\pi}{6}$
  • C
    $x = \frac{\pi}{3}$
  • D
    $x = \frac{\pi}{2}$

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