Contact us
Choose a category below so we can get back to you as quickly as possible.
f(x)=x-lnx f'(x)=1-1/x=0 x=1 f''(x)=1/x²>0 그래서. x=1 극소 치=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.