જો $I=\int_{1}^{2} \frac{dx}{\sqrt{2x^{3}-9x^{2}+12x+4}},$ હોય,તો

  • A
    $\frac{1}{9} < I^{2} < \frac{1}{8}$
  • B
    $\frac{1}{3} < I^{2} < \frac{1}{2}$
  • C
    $\frac{1}{9} < I < \frac{1}{8}$
  • D
    $\frac{1}{3} < I < \frac{1}{2}$

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