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8 September, 18:13

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

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  1. 8 September, 18:18
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    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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