100^3+99^3/100^3+1^+99^3+97^3/99^3+2^3……+51^3+1^/51^3+50^3=?(100^3+99^3)/(100^3+1^3)+(99^3+97^3)/(99^3+2^3)+……+(51^3+1^3)/(51^3+50^3)=?规律是 (m^3+(m-n)^3)/(m^3+n^3)=(m+(m-n))/(m+n)例子 (
来源:学生作业学帮网 编辑:学帮网 时间:2024/05/14 12:00:06
100^3+99^3/100^3+1^+99^3+97^3/99^3+2^3……+51^3+1^/51^3+50^3=?
(100^3+99^3)/(100^3+1^3)+(99^3+97^3)/(99^3+2^3)+……+(51^3+1^3)/(51^3+50^3)=?
规律是 (m^3+(m-n)^3)/(m^3+n^3)=(m+(m-n))/(m+n)
例子 (3^3+2^3)/(3^3+1^3)=(3+2)/(3+1)
(100^3+99^3)/(100^3+1^3)+(99^3+97^3)/(99^3+2^3)+(98^3+95^3)/(98^3+98^3+3^3)+...+(51^3+1^3)/(51^3+50^3)
=(100+99)/(100+1)+(99+97)/(99+2)+……+(51+1)/(51+50)
=(199+196+193+……+52)/101
=[(199+52)+(196+55)+……+(127+124)]/101
=251*25/101
=6275/101
(100^3+99^3)/(100^3+1^3)+(99^3+97^3)/(99^3+2^3)+……+(51^3+1^3)/(51^3+50^3)=?
规律是 (m^3+(m-n)^3)/(m^3+n^3)=(m+(m-n))/(m+n)
例子 (3^3+2^3)/(3^3+1^3)=(3+2)/(3+1)
(100+99*1)+(99+99*2)+(98+99*3)+...+(2+99*99)+(1+99*100)
1^3+2^3+3^3+...+99^3+100^3
1+1+2+2+3+3+.99+99+100+1000
1/100+2/100+3/100...99/100等于多少?
-1-2-2-3-3……-99-99-100
1/2×2/3×3/4.×88/99×99/100
1*1*1+2*2*2+3*3*3+4*4*4+.+99*99*99*+100*100*100=?
1/100+3/100+5/100+……95/100+97/100+99/100=?
-1-2-3-……-99-100
1+2+3+.+99+100+101=?
1000-1-2-3-4-...-99-100
1+2+3+……+99+100
1+2+3+.+98+99+100=
1+(-2)+3+(-4).+99+(-100)得数
1+2+3+.+98+99+100
1+2+3+.+100-99-88.50
(-1)+2+(-3)+4+…+(-99)+100
计算:1-2+3-4+.+99-100