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OpenStudy (anonymous):
Can someone explain in simple terms, aN= a . r (N-1) T| 1|2|3|4|5 18|36|72|144|288 A100= 18 x 2 (100-1) 18 x 2'99 Is there an easier way to memorize this?
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OpenStudy (anonymous):
an=a1 + (n -1) D I forgot the term names for each of these as well.
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