Question: i=1 Using Sigma Notation In Exercises 7-12, use sigma notation to write the sum. 1 1 1 7. + + + 5(1) 5(2) 5(3)

i=1 Using Sigma Notation In Exercises 7-12, use sigma notation to write the sum. 1 1 1 7. + + + 5(1) 5(2) 5(3) 5(11) 9 9 9 9 8. + + + 1+1 1+2 1+3 1 + 14 9. [7)+5]+[72)+5]++ [7 (2) + 5] 10. [1-(4)] + [1 - (4)] + + 1 [-(9)] 2 2 3

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