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Evaluate: sigma 20 and 1 = (3n+2) HEEELLLPPP MEEEEE
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Evaluate: sigma 20 and 1 = (3n+2)
HEEELLLPPP MEEEEE

User Jmster
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Answer:

Explanation:


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

User Tom Sebastian
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