1.
3f – 4g – 1 = 0
{
2f + 3g – 4 = 0
2.
4(x - 1)- 5(2 – y) = 0
{
26x + 3y + 27 = 0
3.
3x – 2y = 10
{
3y – 4x = 17
4.
10x + 12y = -1
{
9y – 4x = 5
5.
5x = 2(1 – y)
{
2x + 5y = 5
Please help me !!
elmintion
2007-09-23 6:00 am
回答 (2)
2007-09-23 6:46 am
✔ 最佳答案
1. a 3f-4g-1=0 *2 b 2f+3g-4=0 *3
a=6f-8g-2=0
b=6f+9g-12=0
b-a
6f+9g-12=0
-
6f-8g-12=0
g-14=0
g=14
2007-09-23 8:21 am
1) f = 19/17, g = 10/17
2) x = -177/118, y = 236/59
3) x = 64, y = 91
4) x = -1/2, y = 1/3
5) x = 0, y = 1
2007-09-23 00:23:31 補充：
There may be some arithmetic errors so it's best to just use it as a reference
2) x = -177/118, y = 236/59
3) x = 64, y = 91
4) x = -1/2, y = 1/3
5) x = 0, y = 1
2007-09-23 00:23:31 補充：
There may be some arithmetic errors so it's best to just use it as a reference
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070922000051KK05078