Contact us
Choose a category below so we can get back to you as quickly as possible.
函數有意義,需滿足:mx^2+4x+m+2>0,x^2-mx+1≥0(根號下為非負數,分母不為0) 由抛物線影像知,x∈R時,不等式成立必須m>0,即開口向上 還需滿足:△1=4^2-4m(m+2)
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.