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Find a formula for an for the arithmetic sequence.

Find a formula for an for the arithmetic sequence.
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5 votes
Find a formula for an for the arithmetic sequence.

Find a formula for an for the arithmetic sequence.-example-1
asked
User Dan Zheng
by
9.1k points

1 Answer

6 votes

Answer:


a_(n) = a + 2(n-1)

Explanation:


a_(5)= a_(1) + 4d \\4 = -4 +4d\\8= 4d\\d= 2\\\\Therefore \\a_(n) = a_(1) + 2(n-1)

answered
User XtrmJosh
by
8.1k points
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