\begin{equation} {x}^{6}\ln\left({x}\right)\end{equation}
Find the interval where the function is concave up and down.
The answers I got are:
Concave up: (ln(2), infinity)
Concave down: (0, ln(2))
and for the life of me I cannot figure out why they aren't correct.
any help? (heart)
I need urgent help. I have this question:
Use implicit differentiation to find an equation of the tangent line to the curve at the given point.
\begin{equation}
{x}^{2/3}+{y}^{2/3}=4
\\
\left(-3\sqrt{3}, 1\right)\end{equation}
(astroid)
x^{\frac{2}{3}}+y^{\frac{2}{3}}=4
My answer is...