Question

What’s the 73rd term of the sequence 18,30,42

Answer 1

Let's find the explicit rule for this arithmetic sequence. We have:

aₙ = a₁ + (n - 1) * d

= 18 + 12 * (n - 1)

= 12n + 6.

The 73rd term is 12 (73) + 6 = 882.