(1+0..228-0.21)x(0.228-0.21+0.2003)-(1+0.228-0.21+0.2003)x(0.228-0.21)简便方法计算简便方法

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/25 15:17:05
(1+0..228-0.21)x(0.228-0.21+0.2003)-(1+0.228-0.21+0.2003)x(0.228-0.21)简便方法计算简便方法(1+0..228-0.21)x(0.2

(1+0..228-0.21)x(0.228-0.21+0.2003)-(1+0.228-0.21+0.2003)x(0.228-0.21)简便方法计算简便方法
(1+0..228-0.21)x(0.228-0.21+0.2003)-(1+0.228-0.21+0.2003)x(0.228-0.21)简便方法计算
简便方法

(1+0..228-0.21)x(0.228-0.21+0.2003)-(1+0.228-0.21+0.2003)x(0.228-0.21)简便方法计算简便方法
设1 0.228-0.21=x 0.228-0.21=y 原式=x*(y 0.2003)-(x 0.2003)*y =xy 0.2003x-xy-0.2003y =0.2003x-0.2003y =0.2003*(x