iran-konkur 2016 Q120

iran-konkur · Other · konkur-riazi_1395_specialized 3 marks Stationary points and optimisation Find concavity, inflection points, or second derivative properties
120- What is the length of the inflection point of the graph of $y = (5-x)\sqrt[3]{x^2}$?
(1) $-1$ (2) zero (3) $1$ (4) $2$
\textbf{120-} What is the length of the inflection point of the graph of $y = (5-x)\sqrt[3]{x^2}$?

\hspace*{2cm} (1) $-1$ \hspace{2cm} (2) zero \hspace{2cm} (3) $1$ \hspace{2cm} (4) $2$