19.0k views
5 votes
Evaluate: sigma 20 and 1 = (3n+2)
HEEELLLPPP MEEEEE

User Jmster
by
5.7k points

1 Answer

3 votes

Answer:

Explanation:


\displaystyle \sum_(n=1)^(20) (3n+2)=((62+5)*20)/(2) =10*67=670\\

User Tom Sebastian
by
6.0k points