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Find the first three partial sums of the series.\newline1+6+11+16+21+26+⋯1 + 6 + 11 + 16 + 21 + 26 + \cdots\newlineWrite your answers as integers or fractions in simplest form.\newlineS1=S_1 = ____\newlineS2=S_2 = ____\newlineS3=S_3 = ____

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Q. Find the first three partial sums of the series.\newline1+6+11+16+21+26+⋯1 + 6 + 11 + 16 + 21 + 26 + \cdots\newlineWrite your answers as integers or fractions in simplest form.\newlineS1=S_1 = ____\newlineS2=S_2 = ____\newlineS3=S_3 = ____
  1. Find S2S_2: To find S2S_2, we add the first two terms of the series.S2=1+6S_2 = 1 + 6S2=7S_2 = 7
  2. Find S3S_3: To find S3S_3, we add the first three terms of the series.\newlineS3=S2+11S_3 = S_2 + 11\newlineS3=7+11S_3 = 7 + 11\newlineS3=18S_3 = 18

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