Answer
The first five terms are:
$a_1= 1$
$a_2 = 1$
$a_3 = 2$
$a_4 =2$
$a_5= 3$
Work Step by Step
Use the given recursive formula to find the next four terms:
$a_1= 1$
$a_2 = 2- a_1 = 2-1=1$
$a_3 = 3- a_2 = 3-1 = 2$
$a_4 = 4-a_3 = 4-2 =2$
$a_5= 5- a_4 = 5-2=3$