$9$:$2820$ Sy Symbolab: Al Math Calculator Open in the Symbolab app OPEN Sy mbolab Download on the App Store $\{$:sum$\_($n$=0)^($oo$)(3)/(2^($n$))|0^($@$)$ Scan to solve Series Examples $\{$:$[$sum$\_($n$=0)^($oo$)(3)/(2^($n$))],[$sum$\_($n$=1)^($oo$)(1)/($n$($n$+1))]$:$\}$ AA symbolab.com