1+3-2+2+4-3+3+5-4+4+6-5+...+36+38-37=
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 07:42:46
![1+3-2+2+4-3+3+5-4+4+6-5+...+36+38-37=](/uploads/image/z/383894-62-4.jpg?t=1%2B3-2%2B2%2B4-3%2B3%2B5-4%2B4%2B6-5%2B...%2B36%2B38-37%3D)
x)36566566566566656I*'R~
)>tOP:UeV(ielo470/.H̳Y B--
1+3-2+2+4-3+3+5-4+4+6-5+...+36+38-37=
1+3-2+2+4-3+3+5-4+4+6-5+...+36+38-37=
1+3-2+2+4-3+3+5-4+4+6-5+...+36+38-37=
原式=2+3+4+5+''''+36+37
=(2+37)*36/2
=702