nintimanny nintimanny
  • 04-02-2015
  • Mathematics
Answered

HELP PLEASE !!!!!
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=


Answer :

konrad509
konrad509 konrad509
  • 04-02-2015
[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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