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2017分之1加到2017分之2016等于多少?

1008

肯定后者大,你把式子写出来,两边都叫去2,剩下的通分

|1/2017-1/2016|+|1/2016-1/2015|+|1/2015 -1| =1/(2016×2017)+1/(2015×2016)+2014/2015 =(2015+2017)/(2015×2016)+2014/2015 =2/2015+2014/2015 =2016/2015 =1又1/2015

=1-1/2+1/2-1/3+1/3-1/4+…+1/2016-1/2017 =1-1/2017 =2016/2017 (2017分之2016) 你好,本题已解答,如果满意 请点右下角“采纳答案”。

a²-2017a+1=0 a²+1=2017a a²-2016a+2017/(a²+1) =a²-2017a+a+2017/(2017a) =a-1+1/a =(a²-a+1)/a =(2017a-a)/a =2016

设a=1/2+1/3+1/4+……+1/2017 b=1/2+1/3+1/4+1/5+……+1/2016 (1+1/2+1/3+1/4+……+1/2017)x(1/2+1/3+1/4+1/5+……+1/2016)-(1/2+1/3+1/4+……+1/2017)x(1+1/2+1/3+1/4+1/5+……+1/2016) =(1+a)b-a(1+b) =b+ab-a-ab =b-a =1/2016-1/2017 =1/4066272

(2/3)^2017×1.5^2016×(-1)^2017 =(2/3×1.5)^2016×2/3×(-1) =1×2/3×(-1) =-2/3

2015×(2015×2016+2015)分之2016+2017分之1 =2015×(2015×2017)分之2016+2017分之1 =2017分之2016+2017分之1 =1

1/2×2017/2016 =2017/4032

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