text the function fx text is such that fx4 x321 x236 x 20 text a find
Search for question
Question
\text { The function } f(x) \text { is such that } f(x)=4 x^{3}+21 x^{2}+36 x-20 \text { (a) Find } f^{\prime}(x) \& f^{\prime \prime}(x) f (1) f "(1) f
(1) Find the equation of the tangent line to the curve at x = 1 Find and classify all critical values