(1+3+5+7……+99+101)-(2+4+6……+98+100)
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/03 09:12:55
(1+3+5+7……+99+101)-(2+4+6……+98+100)
1/(2*4)+1/(3*5)+1/(4*6).+1/(8*10)+1/(9*11)
1 1 1 1 1 1
___+___+___+___.....___+ ___ 第二题
2*4 3*5 4*6 5*7 8*10 9*11
1/(2*4)+1/(3*5)+1/(4*6).+1/(8*10)+1/(9*11)
1 1 1 1 1 1
___+___+___+___.....___+ ___ 第二题
2*4 3*5 4*6 5*7 8*10 9*11
(1+3+5+7……+99+101)-(2+4+6……+98+100)
=1+(3-2)+(5-4)+----+(101-100)
=1+1+1+---+1
=51
1/(2*4)+1/(3*5)+1/(4*6).+1/(8*10)+1/(9*11)
=(1/2)*(1/2-1/4+1/3-1/5+1/4-1/6+------+1/8-1/10+1/9-1/11)
=(1/2)*( 1/2+1/3-1/10-1/11)
=(1/2)*(5/6-21/110)
=53/165
=1+(3-2)+(5-4)+----+(101-100)
=1+1+1+---+1
=51
1/(2*4)+1/(3*5)+1/(4*6).+1/(8*10)+1/(9*11)
=(1/2)*(1/2-1/4+1/3-1/5+1/4-1/6+------+1/8-1/10+1/9-1/11)
=(1/2)*( 1/2+1/3-1/10-1/11)
=(1/2)*(5/6-21/110)
=53/165
计算:(1+3+5+7+……+99+101)-(2+4+6+……+98+100)的值
计算题 (1+3+5+7+……+99+101)-(2+4+6+8+……+98+100)
(1+3+5+7+9……+99+101)-(2+4+6+8+10+……+98+100)
(1+3+5+7……+99+101)-(2+4+6……+98+100)
(1+3+5+7+9……+99+101)-(2+4+6+8……+98+100)=?
(1+3+7+……+99+101)-(2+4+6+……+98+100)=?
(1+3+5+7+…+99+101)-(2+4+6+…+98+100)等于()
(1+3+5+7+…+99+101)-(2+4+6+8+…+98+100)等于多少
1-2+3-4+5-6+7-……+97-98+99-100+101怎么算
(1+3+5+7+…+99+101)-(2+4+6+8+…+98+100)
101-100-99+98+……+9-8-7+6+5-4-3+2+1
(1+3+5+7+9……+99)-(2+4+6+8+10+……+98+100)