Question

Given the explicit formula for an arithmetic sequence find the term

named in the problem. *
an = 21 + (n − 1) • 45

Find a38

Answer 1

Explanation:

n = 38

a38 = 21 + (38 - 1)*45

a38 = 21 + 37*45

a38 = 21 + 1665

a38 = 1686