Find the time complexity for the following recurrences using the master theorem. $($a$)$ T$($n$)=4$T n $2+$ n $2($b$)$ T$($n$)=16$T n $4+$ n $($c$)$ T$($n$)=0\mathrm{.}75$T n $4+13$ n $($d$)$ T$($n$)=3$T n $4+$ n l