જો વિધેય $f(x) = \sec^{-1}\left(\frac{2x}{5x+3}\right)$ નો પ્રદેશ $[\alpha, \beta) \cup (\gamma, \delta]$ હોય,તો $|3\alpha + 10(\beta + \gamma) + 21\delta|$ ની કિંમત $.......$ થાય.

  • A
    $23$
  • B
    $22$
  • C
    $24$
  • D
    $21$

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