જો $\cos (\alpha + \beta ) = \frac{4}{5}, \sin (\alpha - \beta ) = \frac{5}{13}$ અને $\alpha, \beta$ એ $0$ અને $\frac{\pi}{4}$ ની વચ્ચે હોય,તો $\tan 2\alpha = $

  • A
    $\frac{16}{63}$
  • B
    $\frac{56}{33}$
  • C
    $\frac{28}{33}$
  • D
    આમાંથી કોઈ નહીં

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