Question

An expression for the nth term of a sequence is

10-n^2

Find the third term of this sequence.

Answer 1

1

Explanation:

`a_(n) = 10 - {n}^(2) \\ \\ \: plug \: n = 5 \\ \\ a_(3) = 10 - {3}^(2) \\ \\ a_(3) = 10 - 9 \\ \\ a_(3) = 1`