Contact us
Choose a category below so we can get back to you as quickly as possible.
例如求正比例函數y=2x與反比例函數y=7\x的交點座標. 則: y=2x y=7/x 建立方程組, 2x=7/x x^2=7/2 x=√14/2或x=-√14/2 正比例函數y=2x與反比例函數y=7\x的交點座標(√14/2,√14)或(-√14/2,-√14) 這個過程是會出現一元二次方程的. 明白咩?不明白百度消息我.
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.