(1+0.1)+(2+0.1*2)+(3+0.1*3)+.+(99+0.1*99)+(100+0.1*99)简便方法解题
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 02:20:52
![(1+0.1)+(2+0.1*2)+(3+0.1*3)+.+(99+0.1*99)+(100+0.1*99)简便方法解题](/uploads/image/z/8584164-36-4.jpg?t=%EF%BC%881%2B0.1%EF%BC%89%2B%EF%BC%882%2B0.1%2A2%EF%BC%89%2B%EF%BC%883%2B0.1%2A3%EF%BC%89%2B.%2B%EF%BC%8899%2B0.1%2A99%EF%BC%89%2B%EF%BC%88100%2B0.1%2A99%EF%BC%89%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%A7%A3%E9%A2%98)
(1+0.1)+(2+0.1*2)+(3+0.1*3)+.+(99+0.1*99)+(100+0.1*99)简便方法解题
(1+0.1)+(2+0.1*2)+(3+0.1*3)+.+(99+0.1*99)+(100+0.1*99)
简便方法解题
(1+0.1)+(2+0.1*2)+(3+0.1*3)+.+(99+0.1*99)+(100+0.1*99)简便方法解题
(1+0.1)+(2+0.1*2)+(3+0.1*3)+.+(99+0.1*99)+(100+0.1*99)
=1.1*(1+2+3+……+99+100)
=1.1*(1+100)*100/2
=55*101
=5555