Question

Complete the recursive formula of the arithmetic sequence 20, 26, 32, 38, ....

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

​

Answer 1

Explanation:

a(n) = a +(n-1)d

a=20

d=26-20=6

°.° a(n) = 20 +(n–1)6

a(1) = 20 +(1–1)6=20

hope this helps