Contact us
Choose a category below so we can get back to you as quickly as possible.
x/3=y/4=m/5≠0 則設x/3=y/4=m/5=t 有:x=3t y=4t m=5t 代入要求的方程中有: (x+y+m)/(x+y-m)=(3t+4t+5t)/(3t+4t-5t)=6
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.