यदि $n \geq 1$ के लिए,$P_n = \int\limits_1^e (\log x)^n \, dx$ है,तो $P_{10} - 90P_8$ का मान ज्ञात कीजिए।

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

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