Question: Write out S, for the following, and decide whether it is true or false. Sri: 72 + 142 + 21 + . . . +

Write out S, for the following, and decide whether it is

true or false. Sri: 72 + 142 + 21" + . .

Write out S, for the following, and decide whether it is true or false. Sri: 72 + 142 + 21" + . . . + ( 70)= 49n(n + 1)(20 + 1) 6

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