Contact us
Choose a category below so we can get back to you as quickly as possible.
由柯西不等式可知(a2+b2)(x2+y2)≥(ax+by)2,即1≥(ax+by)2,∴ax+by≤mn故答案為:mn
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.