︱a-1︱+︱ab-2 ︱=0 a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2006)/1写错了题目是 ︱a-1︱+︱ab-2 ︱=0 1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+1/(a+3)(b+3)……+1/(a+2005)(b+2006) 写出思路。
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 06:35:14
![︱a-1︱+︱ab-2 ︱=0 a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2006)/1写错了题目是 ︱a-1︱+︱ab-2 ︱=0 1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+1/(a+3)(b+3)……+1/(a+2005)(b+2006) 写出思路。](/uploads/image/z/5092397-53-7.jpg?t=%EF%B8%B1a-1%EF%B8%B1%2B%EF%B8%B1ab-2+%EF%B8%B1%3D0+a%2Bb%2F1%2B%28a%2B1%29%28b%2B1%29%2F1%2B%28a%2B2%29%28b%2B2%29%2F1%2B%28a%2B3%29%28b%2B3%29%2F1%E2%80%A6%E2%80%A6%2B%28a%2B2005%29%28b%2B2006%29%2F1%E5%86%99%E9%94%99%E4%BA%86%E9%A2%98%E7%9B%AE%E6%98%AF+%EF%B8%B1a-1%EF%B8%B1%2B%EF%B8%B1ab-2+%EF%B8%B1%3D0+1%2Fab%2B1%2F%28a%2B1%29%28b%2B1%29%2B1%2F%28a%2B2%29%28b%2B2%29%2B1%2F%28a%2B3%29%28b%2B3%29%E2%80%A6%E2%80%A6%2B1%2F%28a%2B2005%29%28b%2B2006%29+%E5%86%99%E5%87%BA%E6%80%9D%E8%B7%AF%E3%80%82)
︱a-1︱+︱ab-2 ︱=0 a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2006)/1写错了题目是 ︱a-1︱+︱ab-2 ︱=0 1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+1/(a+3)(b+3)……+1/(a+2005)(b+2006) 写出思路。
︱a-1︱+︱ab-2 ︱=0 a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2006)/1
写错了题目是 ︱a-1︱+︱ab-2 ︱=0 1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+1/(a+3)(b+3)……+1/(a+2005)(b+2006) 写出思路。
︱a-1︱+︱ab-2 ︱=0 a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2006)/1写错了题目是 ︱a-1︱+︱ab-2 ︱=0 1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+1/(a+3)(b+3)……+1/(a+2005)(b+2006) 写出思路。
︱a-1︱+︱ab-2 ︱=0
a-1=0 a=1 ab-2=0 b=2
a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2005)/1
=1-1/2+1/2-1/3+……+1/2006-1/2007
=2006/2007
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︱a-1︱+︱ab-2 ︱=0 a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2006)/1写错了题目是 ︱a-1︱+︱ab-2 ︱=0 1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+1/(a+3)(b+3)……+1/(a+2005)(b+2006) 写出思路。
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