总述:本次共解1题。其中
☆算术计算1题
〖1/1算式〗
作业:求算式 (1^2+2^2)/(1*2)+(2^2+3^2)/(2*3)+(3^2+4^2)/(3*4)+0.|+(2017^2+2018^2)/(2017*2018) 的值.
题型:数学计算
解:
(1^2+2^2)/(1*2)+(2^2+3^2)/(2*3)+(3^2+4^2)/(3*4)+0.|+(2017^2+2018^2)/(2017*2018)
=5/(1*2)+(2^2+3^2)/(2*3)+(3^2+4^2)/(3*4)+0.+(2017^2+2018^2)/(2017*2018)
=5/2+(2^2+3^2)/(2*3)+(3^2+4^2)/(3*4)+0.+(2017^2+2018^2)/(2017*2018)
=5/2+13/(2*3)+(3^2+4^2)/(3*4)+0.+(2017^2+2018^2)/(2017*2018)
=5/2+13/6+(3^2+4^2)/(3*4)+0.+(2017^2+2018^2)/(2017*2018)
=5/2+13/6+25/(3*4)+0.+(2017^2+2018^2)/(2017*2018)
=5/2+13/6+25/12+0.+(2017^2+2018^2)/(2017*2018)
=5/2+13/6+25/12+0.+8140613/(2017*2018)
=5/2+13/6+25/12+0.+8140613/4070306
=2.5+13/6+25/12+0+8140613/4070306
=2.5+2.166667+25/12+0+8140613/4070306
=2.5+2.166667+2.083333+0+8140613/4070306
=2.5+2.166667+2.083333+0+2
=4.666667+2.083333+0+2
=6.75+0+2
=6.75+2
=8.75 答案:(1^2+2^2)/(1*2)+(2^2+3^2)/(2*3)+(3^2+4^2)/(3*4)+0.|+(2017^2+2018^2)/(2017*2018)=8.75你的问题在这里没有得到解决?请到 热门难题 里面看看吧!