Question

consider the arithmetic sequence 5,9,13
a.what is its common difference?
b.what is its algebraic form?​

Answer 1

Answer:

$common \: difference \: = 9 - 5 \\ = 4 \\ tn = a + (n - 1)d \\ tn = 5 + (n - 1)4 \\ tn = 5 + 4n - 4 \\ tn = 4n + 1$

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