Consider the following. y$1=1$ x$2,$y$2=$ x$21($a$)$ Find all points of intersection of the graphs of the two equations. Point A$($x$,$ y$)=()($smaller x$-$value$)$Point B$($x$,$ y$)=()($larger x$-$value$)($b$)$ Find the unit tangent vectors to each curve at their points of intersection. Point A$$y$1=0\mathrm{.}447,0\mathrm{.}894$ Point A$$y$2=0\mathrm{.}447,0\mathrm{.}894$ Point B$$y$1=0\mathrm{.}447,0\mathrm{.}894$ Point B$$y$2=0\mathrm{.}447,0\mathrm{.}894($c$)$ Find the angles $(090)$ between the curves at their points of intersection. $($Round your answers to two decimal places.$)$