Contact us
Choose a category below so we can get back to you as quickly as possible.
mnx-n^2=mn-m^2x mx(n+m)=n(m+n) 若m+n=0,則x可以取任意實數 若m+n不等於0 則m和n不能同時為0 若m=0,n不等於0 則0=n(m+n),不成立,無解 若n=0,m不等於0 則mx=0 x=0 若m和n都不等於0 則mx=n x=n/m
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.