2 years ago

Given A25=176 and the common difference of the arithmetic is 8, find a52.

1 answer:

3 0

A is a series of the form a(n) = 8n + b.
Since a(25) = 176, you can see that b = 176-8*25 = -24.

Then a(52) = 8*52 -24 = 392

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