Contact us
Choose a category below so we can get back to you as quickly as possible.
設方程的根為x1,x2 則x1+x2=-(2m+3)/m^2 x1*x2=1/m^2=1 得m=1或者-1 代入m=-1,方程無根 所以m=1
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.