13. Use summation notation to write the series 2.2 ++ 6.6+ 11 + for 5 terms. Note: In each of these images, the lower limit of the summation notation is either "n=1" =0". ΟΣΣ4+6 62) 2-1 ΟΣ-22+4.4) 2-1 4 ON2.2+8.82) X-0 ΟΣ-3.8+2.22) X-1

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