$1$ point$)$ The function f$($x$)=11+49$x$2$f$($x$)=11+49$x$2$ is represented as a power series

f$($x$)=$n$=0$cnxn$.$f$($x$)=$n$=0$cnxn$.$

Find the first few coefficients in the power series.

c$0=$c$0=$

c$1=$c$1=$

c$2=$c$2=$

c$3=$c$3=$

c$4=$c$4=$

Find the radius of convergence RR of the series.

R$=$R$=.$