Contact us
Choose a category below so we can get back to you as quickly as possible.
用求導的管道來做. y'=1-(2x)/(1+x^2)=(1+x^2-2x)/(1+x^2)=(x-1)^2/(x^2+1)>=0 所以函數為增函數.
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.