|1/2015-1/2014|+|1/2014-1/2013|-|1/2013-1/2015|怎么算
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/06 02:37:28
|1/2015-1/2014|+|1/2014-1/2013|-|1/2013-1/2015|怎么算
|1/2015-1/2014|+|1/2014-1/2013|-|1/2013-1/2015|怎么算
|1/2015-1/2014|+|1/2014-1/2013|-|1/2013-1/2015|怎么算
首先判断绝对值里面的为正数或者负数,然后展开绝对值,1/2015比1/2014小,1/2014比1/2013小,1/2013比1/2015大,所以展开绝对值后原式变为|1/2015-1/2014|+|1/2014-1/2013|-|1/2013-1/2015|=1/2014-1/2015+1/2013-1/2014-1/2013+1/2015=0
(-1/2)^2014+(-1/2)^2015=?
2014×2015+1分之2014+2015×2013
2015^2-2014*2016 = 1
1×2分之2015+2×3分之2015+3×4分之2015+……+2014×2015分之2015快快快
数学1题选择 计算(-2/1)^2014+(-2/1)^2015 A.( 1+ -2/1)^2015 B.(2/1)^2015 C.-(2/1)^2014 D.(2/1)^2014计算(-2/1)^2014+(-2/1)^2015A.( 1+ -2/1)^2015 B.(2/1)^2015 C.-(2/1)^2014D.(2/1)^2014
化简:(根号2+1)^2014×(根号2-1)^2015
计算:(1/2015-1)(1/2014-1)(1/2013-1)...(1/3-1)(1/2-1)
(-1/2)^2015×（-2）^2014等于多少?
|1/2015-1/2014|+|1/2016-1/2015|-|1/2016-1/2014
|1/2015-1/2014|+|1/2014-1/2013|-|1/2013-1/2015|怎么算
化简2015×2013＋1分之2014的2次方
计算1+(-2)+3+(-4)+…+2013+(-2014)+2015=
1-2+3-4+5+...+2013-2014+2015等于多少?
(-1)+2+(-3)+4+(-5)+6+…+2014+(-2015)
1+2+3+4+5+6.+2014+2015答案?
(2013+2013/2014)*(2015+1/2013)-2014*2014=?
1/1*2+1/2*3+1/3*4+…+1/2014*2015
1/2+1/6+1/12+…+1/n（n+1）=2014/2015