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arithmetic sequence equations. The first term a 1 a_1 a1 the common difference between consecutive terms d d d and the term position n n n. A n is the nth term of the sequence.
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Using recursive formula for arithmetic sequence Opens a modal Practice. When writing the general expression for an arithmetic sequence you will not actually find a value for this. X n a dn-1 We use n-1 because d is not used in the 1st term.
A 1 is the first term in the sequence.
For instance the sequence 5 7 9 11 13 15. A n is the nth term of the sequence. It will be part of your formula much in the same way xs and ys are part of algebraic equations. For instance the sequence 5 7 9 11 13 15.
