12a+289b+176c=326
289a+6975b+3876c=7791
176a+3876b+2598c=4799
a=?
b=?
c=?
解3元一次方程式 (20點)
2013-06-20 10:38 am
回答 (4)
2013-06-20 9:52 pm
✔ 最佳答案
a = 6760771/262557 = 25.749727 (取6位小數)b = -32426/787671 = -0.041167 (取6位小數)
c = 258683/1575342 = 0.164208 (取6位小數)
2013-06-24 5:34 pm
Why so much people choose wrong answer???
I wonder this country's level.
I wonder this country's level.
2013-06-23 11:03 pm
以001 的答案，則
176a+3876b+2598c
= 4782.11568... (不是4799, 相差3.11568...)
以002的答案，則
a = 6760771/262557 = 25.749727 (取6位小數)
b = -32426/787671 = -0.041167 (取6位小數)
c = 258683/1575342 = 0.164208 (取6位小數)題目
176a+3876b+2598c
= 4799.001044 (相差0.001044, 如果用分數計，零相差)
所以002是正確的。
176a+3876b+2598c
= 4782.11568... (不是4799, 相差3.11568...)
以002的答案，則
a = 6760771/262557 = 25.749727 (取6位小數)
b = -32426/787671 = -0.041167 (取6位小數)
c = 258683/1575342 = 0.164208 (取6位小數)題目
176a+3876b+2598c
= 4799.001044 (相差0.001044, 如果用分數計，零相差)
所以002是正確的。
2013-06-20 11:30 am
a = 24.598243306052964885546040442811
b = 0.00547716903140005973885505782873
c = 5901007/35521270 = 0.16612601407551025061885456235095
無整數解
b = 0.00547716903140005973885505782873
c = 5901007/35521270 = 0.16612601407551025061885456235095
無整數解
參考: 自己
收錄日期: 2021-04-13 19:31:47
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130620000010KK00507