Contact us
Choose a category below so we can get back to you as quickly as possible.
f(x)= x(x - a)= x^2 - ax =(x - a/2)^2 - a^2/4當x = a/2時,f(x)有極小值.所以x = a/2 = 2 ==> a =4.min[f(x)] = -a^2/4 = -4^2 / 4 = - 4
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.