- 3
- 4
- 2
- does not exist, as the limits at left and right disagree.
- f(3)=3
Figure 1: Piece-wise defined function.
The limit fails to exist at two values, x=1 and x=-1: hence, the values of
a for which 
exists is 
.
Section 2.2; pp. 82-84 #4, 12
Figure 1: Piece-wise defined function.
The limit fails to exist at two values, x=1 and x=-1: hence, the values of
a for which exists is .