## College Algebra (10th Edition)

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