一個國中數學公式想不出來 - 經濟
![Blanche avatar](/img/girl.jpg)
By Blanche
at 2010-01-08T22:17
at 2010-01-08T22:17
Table of Contents
老師上課講到就業充份產出
說這個解公式是國中數學
可是我怎麼看都想不出來
_
aLx。X+aLy。Y= L
_
aKx。X+aKy。Y= K
答案解出來是
_ _ _ _
X= aKy。L-aLy。k aLx。K-akx。L
________________ Y=_______________
aLx。aKy-Akx。aLy aLx。aKy-akx。aLy
麻煩大家敎敎我 感激><
--
說這個解公式是國中數學
可是我怎麼看都想不出來
_
aLx。X+aLy。Y= L
_
aKx。X+aKy。Y= K
答案解出來是
_ _ _ _
X= aKy。L-aLy。k aLx。K-akx。L
________________ Y=_______________
aLx。aKy-Akx。aLy aLx。aKy-akx。aLy
麻煩大家敎敎我 感激><
--
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經濟
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