Contact us
Choose a category below so we can get back to you as quickly as possible.
設am=mc=x,bn=nc=y,mb=z(畫一下圖能清楚些) 可知x+z=10① 2y+z=x② 組成方程組,①-②得 x-2y=10-x 2x-2y=10 x-y=5 從圖中可看出x-y即mc-nc=mn=5
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.