An operation (*) is defined on the set T = {-1, 0, ...., 5} by
FURTHER MATHEMATICS
WAEC 2019
An operation (*) is defined on the set T = {-1, 0, ...., 5} by x * y = x + y - xy. Which of the following operation(s) will give an image which is an element of T?
I. 2(*)5 II. 3(*)5 III. 3(*)4
- A. I only
- B. II only
- C. I and III only
- D. II and III only
Correct Answer: B. II only
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