$12\mathrm{.}9\mathrm{.}2$: Applying the Master Theorem.

help$\_$outline

Give the asymptotic growth of T$($n$)$ using $$ notation.

$($a$)$

T$($n$)=4$T$($n$3)+($n$)$

$($b$)$

T$($n$)=4$T$($n$4)+($n$)$