Given that

T$($n$)=$T$(1)+$ni$=2$i

what is T$($n$)$ and it's complexity $?$

Group of answer choices

Not any of these

n$($n$+1)$ and $\backslash$Theta $($n$2)$

$1+($n$+2)($n$1)/2$ and $\backslash$Theta $($n$2)$

$[$T$($n$2)+($n$1)]+$n and $\backslash$Theta $($n$)$