જો $2 \sec 2\alpha = \tan \beta + \cot \beta$ હોય,તો $\alpha + \beta$ ની એક કિંમત શું થાય?

  • A
    $\frac{\pi}{4}$
  • B
    $\frac{\pi}{2}$
  • C
    $\pi$
  • D
    $2\pi$

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