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1 . What is the value of the sum indicated by the expression ( the bottom is 2k + 2 )

HELP PLEASE 1 What Is The Value Of The Sum Indicated By The Expression The Bottom Is 2k 2 class=

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Konrad509id
[tex]\sum_{k=4}^8(2k+2)=2\cdot4+2+2\cdot5+2+2\cdot6+2+2\cdot7+2+2\cdot8+2\\ \sum_{k=4}^8(2k+2)=10+12+14+16+18\\ \sum_{k=4}^8(2k+2)=70[/tex]

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