Problem: The expression cannot be evaluated for or , since division by zero is not allowed. For other values of :
Answer Choices:
A. The expression takes on many different values.
B. The expression has only the value .
C. The expression has only the value .
D. The expression always has a value between and .
E. The expression has a value greater than or less than .
Solution:
Adding, we have
for values of other than or .