How do you find the derivative of the function: #f(x) = x^3 - 3x^2 - 1# evaluated at x=3?
1 Answer
Dec 21, 2016
Explanation:
differentiate each term of f(x) using the
#color(blue)"power rule"#
#color(orange)"Reminder " color(red)(bar(ul(|color(white)(2/2)color(black)(d/dx(ax^n)=nax^(n-1))color(white)(2/2)|)))#
#rArrf'(x)=3x^2-6x#
#rArrf'(3)=3(3)^2-6(3)=27-18=9#
