Answer
The first five terms are:
$a_1= 2$
$a_2 = -2$
$a_3 = 2$
$a_4 = -2$
$a_5= 2$
Work Step by Step
Use the given recursive formula to find the next four terms:
$a_1= 2$
$a_2 = -a_1 = -2$
$a_3 = -a_2 = -(-2) = 2$
$a_4 = -a_3 = -2$
$a_5= -a_4 = -(-2)=2$