Question: Find the sum, if it exists. a. 4 + 2 + 1 + ......... b. 7 + 3 + 9 / 7 + ........ c.

Find the sum, if it exists.
a. 4 + 2 + 1 + .........
b. 7 + 3 + 9 / 7 + ........
c. 25 + 20 + 16 + ........

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