Contact us
Choose a category below so we can get back to you as quickly as possible.
曲線的導函數就是該點處切線的斜率.如,y=f(x)在X=1處的切線方程為y=x-1,所以X=1處導函數值為1,即f'(1)=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.