Consider the following function. F$($x$,$ y$,$ z$)=2($x $3)2+($y $6)2+($z $4)2=10$ Find the partial derivatives. Fx$($x$,$ y$,$ z$)=$ Fy$($x$,$ y$,$ z$)=$ Fz$($x$,$ y$,$ z$)=$ Determine the partial derivatives at the point $(4,8,6).$ Fx$(4,8,6)=$ Fy$(4,8,6)=$ Fz$(4,8,6)=$ Now, consider the following. $2($x $3)2+($y $6)2+($z $4)2=10,(4,8,6)($a$)$ Find an equation of the tangent plane to the given surface at the specified point. $($b$)$ Find an equation of the normal line to the given surface at the specified point. $($x$($t$),$ y$($t$),$ z$($t$))=$