Asked by matthew
the second and fifth terms of an arithmetic sequence are 5 and 38 respectively. Find the explicit formula for the sequence
Answers
Answered by
Steve
38-5 = 33 = 3d, so d=11
a+d = 5, so a = -6
An = -6 + (n-1)*11 = -17+11n
a+d = 5, so a = -6
An = -6 + (n-1)*11 = -17+11n
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