Work the following recursive problems.Find $(2)$f$(2),(3)$f$(3),(4)$f$(4),$ and $(5)$f$(5)$ if $()$f$($n$)$ is defined recursively by $(0)=1$f$(0)=1,(1)=2$f$(1)=2$ and $=0,1,2...$n$=0,1,2...$

$()=$f$($n$)=$

$(1)2+(2)$f$($n$1)2+$f$($n$2)$

$(2)/(1)$f$($n$2)/$f$($n$1)$

$(0)=$f$(0)=$

$-1-1$

$(1)=$f$(1)=$

$22$