1.解方程【1+(x+1)*(1-x)】*(1-x=1)=(x+1+1)*【(x+1)*(1-x)】2.规定a※b=a+(a+1)+(a+2)+……+(a+b-1)(a,b为自然数).(1)计算:1※(10※7);(2)x※10=105,x=?3.有赵、钱、孙、李、周五人
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 19:29:34
![1.解方程【1+(x+1)*(1-x)】*(1-x=1)=(x+1+1)*【(x+1)*(1-x)】2.规定a※b=a+(a+1)+(a+2)+……+(a+b-1)(a,b为自然数).(1)计算:1※(10※7);(2)x※10=105,x=?3.有赵、钱、孙、李、周五人](/uploads/image/z/12358148-68-8.jpg?t=1.%E8%A7%A3%E6%96%B9%E7%A8%8B%E3%80%901%2B%EF%BC%88x%2B1%EF%BC%89%2A%EF%BC%881-x%EF%BC%89%E3%80%91%2A%EF%BC%881-x%3D1%EF%BC%89%3D%28x%2B1%2B1%29%2A%E3%80%90%EF%BC%88x%2B1%EF%BC%89%2A%281-x%29%E3%80%912.%E8%A7%84%E5%AE%9Aa%E2%80%BBb%3Da%2B%EF%BC%88a%2B1%EF%BC%89%2B%EF%BC%88a%2B2%EF%BC%89%2B%E2%80%A6%E2%80%A6%2B%EF%BC%88a%2Bb-1%EF%BC%89%EF%BC%88a%2Cb%E4%B8%BA%E8%87%AA%E7%84%B6%E6%95%B0%EF%BC%89.%EF%BC%881%EF%BC%89%E8%AE%A1%E7%AE%97%EF%BC%9A1%E2%80%BB%EF%BC%8810%E2%80%BB7%EF%BC%89%EF%BC%9B%EF%BC%882%EF%BC%89x%E2%80%BB10%3D105%2Cx%3D%3F3.%E6%9C%89%E8%B5%B5%E3%80%81%E9%92%B1%E3%80%81%E5%AD%99%E3%80%81%E6%9D%8E%E3%80%81%E5%91%A8%E4%BA%94%E4%BA%BA)
xTN@>l'YӖF[PG
ͥ\!"X$PK]OB0س3g$=7yخ0~Xi~4 9Xc,
X h,6 z&xك!D($kdO9Գn;qo{I$2kGÒK~sT\4˱~OU~:%/I߲_!|5mko,^):ywA~
yE-tX^}_ 6
Ќ&^Qw| $]bAEjVtzUpY>M+~ot}Z{[aI."xJm6IJ