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108 台灣大學微積分(B) 第 10 題

考題 / 轉學考微積分 / 台灣大學 / 微積分B

108學年度 · 108台大微積分B · 第 10 題

題目

Problem

PART 1: Fill in the blanks.

  • Work need not be shown, only answers will be graded.

  • 4 points for each blank and 100 points total.

  • Each answer need to be clearly labeled on the answer sheet.

  • Use of any device with computer algebra system during the exam will result in zero points.

  1. Find the sum

  • n=2(n2)!+2nn!=(13)\displaystyle\sum_{n=2}^{\infty}\frac{(n-2)!+2^n}{n!}=\underline{\quad(13)\quad}.
  • n=112n1(13)2n=(14)\displaystyle\sum_{n=1}^{\infty}\frac{1}{2^n-1}\left(\frac{1}{\sqrt{3}}\right)^{2n}=\underline{\quad(14)\quad}.

解答