How do you determine whether the function \(\displaystyle{F}{\left({x}\right)}={\frac{{{1}}}{{{12}}}}{X}^{{{4}}}+{\frac{{{1}}}{{{6}}}}{X}^{{{3}}}-{3}{X}^{{{2}}}-{2}{X}+{1}\) is

Find the local maximum and minimum values and saddle points of the function. If you have three-dimensional graphing software, graph the function with a domain and viewpoint that reveal all the important aspects of the function
$f(x,y)=x^3-6xy+8y^3$

$\frac{1}{\sec <!--\; \; -->(x)}$ in derivative?

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