#### Answer

please see step-by-step

#### Work Step by Step

(See p.707)
A sequence is a FUNCTION defined on the set of positive integers,
and the function values f(1)$=a_{1}$, f(2)$=a_{2}$, f(3)$=a_{3}$,...
are written as
$a_{1},a_{2},a_{3},...,a_{n},...$
-----------
If we are given the general term $a_{n}$, it is given in the form
$a_{n}=f(n)$
Calculate $f(1), f(2), f(3),...$ to evaluate the terms.