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26 April, 11:04

How to find the first number of an arithmetic sequence?

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  1. 26 April, 11:33
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    Depends on what you're given but if you are given a certain term and the common difference subtract An, the value of the sequence at that term, by (n-1*d) which is the term number - 1 times the common difference. So An - ((n-1) * d)
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