Question

Write an explicit formula for a-n, then term of the sequence 36, 39, 42,....

Answer 1

a^n = 36 + (n-1) * 3

Explanation:

Explicit formula for arithmetic sequences: a^n = a^1 + (n-1) * d

In this case, a^1 = 36 and common difference/d = 3

So...

a^n = 36 + (n-1) * 3 is the explicit formula for this sequence.