compute T$2($x$)$ at x $=0\mathrm{.}5$ for h $=$ e$^$x and use a calculator to compute the error $|$e$^$x $-$ T$2($x$)|$ at x $=1\mathrm{.}4$ T$2($x$)=?|$e$^$x$-$T$2($x$)=?$ Taylor polynomials and approximations problem