જો $n \geq 1$ માટે,$P_n = \int\limits_1^e (\log x)^n \, dx$ હોય,તો $P_{10} - 90P_8$ ની કિંમત શોધો.

  • A
    $10$
  • B
    $10e$
  • C
    $-9$
  • D
    $-9e$

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