作业帮(1-1/2*4)(1-3/3*5)*.*(1-15/9*11)
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(1-1/2*4)(1-3/3*5)*.*(1-15/9*11)
(1-1/2*4)(1-3/3*5)*.*(1-15/9*11)
(1-1/2*4)(1-3/3*5)*.*(1-15/9*11)
A1=(1*1-1+1)/((1+1)*(1+3))=1/8 1-A1=7/8
A2=(2*2-2+1)/((2+1)(2+3))=3/15 1-A2=12/15
A3=(3*3-3+1)/((2*2+1)(2*2+3)=7/35 1-A3=28/35
A4=(4*4-4+1)/((2*2*2+1)(2*2*2+3))=13/99 1-A4=86/99
原式=(7/8)*(12/15)*(28/35)*(86/99)=1204/2425
(1+1/2+1/3+1/4+1/5)*(1/3+1/4+1)-(1+1/3+1/4)*(1/2+1/3+1/4+1/5)
(1+1/2+1/3+1/40)*(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4)(1+1/2+1/3+1/4)*(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4),不好意思,是下面这个!
(-2/3)+1/2+4/5+(-1/2)+(-1/3)
/1/3-1/2/+/1/4-1/3/+/1/5-1/4/+.+/1/10-1/9/
|1/3-1/2|+|1/4-1/3|+|1/5-1/4|+.+|1/2008-1/2007|
|1/3-1/2|+|1/4-1/3|+|1/5-1/4|+...+|1/10-1/9|
matlab 编程数组的数据如下：8 1 1 1 1 1 1 3 3 2 1 1 5 1 1 3 1 1 2 1 1 5 3 3 3 1 1 4 5 1 1 1 1 1 2 2 2 2 4 3 1 5 4 2 1 1 1 2 1 3 1 1 2 2 5 2 1 3 2 5 1 1 3 1 1 1 1 2 1 5 4 2 2 1 3 4 1 2 3 1 2 4 4 1 1 1 2 2 2 2 2 1 1 4 4 1 3 2 1 1 5 1 1 3 7 1 1
1 2 3 4 5 1 2
1+1+2+2+3+4+5
1+1 2+2 3+3 4+4 5+5
简算：1/1*2+1/2*3+1/3*4+1/4*5+1/5*6
1,2,3,4,5
1,2,3,4,5,
1 2 3 4 5
1,2,3,4,5
1,2,3,4,5,
1 2 3 4 5
1,2,3,4,5,