$\cos^2 \frac{\pi}{12} + \cos^2 \frac{\pi}{4} + \cos^2 \frac{5\pi}{12}$ નું મૂલ્ય શોધો.

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

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ધારો કે $A = \{x \in R : |\sqrt{3} \cos x - \sin x| \geq 2, 0 \leq x \leq 2\pi\}$. જો $x_1 \in A$ અને $x_2 \in A$ હોય,તો $\frac{x_1}{x_2}$ ની શક્ય કિંમત શોધો.

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