Solving 三元一次 equation

2009-05-19 4:15 am
33=102400a+320b+c 1
40=360000a+600b+c 2
50=1646089a+1283b+c 3
3-2: 10=1286089a+683b 4
3-1: 17=1543689a+963b 5
Plz solve for a,b,c
steps can be missed.Just want the answer! THZ!

回答 (3)

2009-05-19 8:24 am
✔ 最佳答案
From 5 ,
a=(17-963b)/1543689 ---6
Su 6 into 4
10=1286089[(17-963b)/1543689 ]+683b
10=14.16-802b+683b
119b=4.16
b=0.0349 ---7
Sub 7 into 6
a=(17-963*0.0349)/1543689
a=-1.08*10^(-5) ---8
Sub 7 and 8 into 1
c=33-102400[-1.08*10^(-5) ]-320(0.0349)
c=22.9
2009-05-19 5:41 am
Sorry,
can you show some steps..=]
i want to know how to do this now...
2009-05-19 5:35 am
a = - 0.000010757
b = 0.0349
c = 22.9335


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