求人帮忙看几个高等数学题目,谢谢
来源:百度知道 编辑:UC知道 时间:2024/06/15 01:54:58
有题目图
1.
R1 + R2 + R3 + R4 + R5= 6
R1 + R2 + R3 + R4 = 1/50(60 + R5)
R1 + R2 + R3 = 1/100(60 + R5 +R4)
R1 + R2 = 1/300(60 + R5 +R4+ R3)
R1 = 1/500(60 + R5 +R4+ R3 + R2)
2.
A =
1 1 1 1 1
50 50 50 50 -1
100 100 100 -1 -1
300 300 -1 -1 -1
500 -1 -1 -1 -1
R = [r1 r2 r3 r4 r5]'
b = [6 60 60 60 60]'
AR = b
3.
R = A\b =
22/167
403/4604
805/1854
1100/1717
80/17
4.
设B =
B =
1 1 1 1 1 -6
50 50 50 50 -1 -60
100 100 100 -1 -1 -60
300 300 -1 -1