Contact us
Choose a category below so we can get back to you as quickly as possible.
(2m)^2-4*(2m^2-1)=0m=1或-1當m=1時、x=1不相,去當m=-1時,X=-1符合所以第一種情況m=-1第二種有正一負兩根判別式:-4m^2~4>0兩根相異:X1*X2=2m^2-1
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.