A$.$ Find the linear approximating polynomial for the following functions centered at the given point a B$.$ Find the quadratic approximating polynomial for the following functions centered at a C$.$ Use the polynomials obtained in $($a$)$ and $($b$)$ to approximate the given quantity $1.$ f$($x$)=$ e$^(-2$x$),$ a$=0$; approximate e$^(-0\mathrm{.}2)$