A binary operation ∗ is defined on a set of real numbers by x ∗
MATHEMATICS
JAMB 1993
A binary operation ∗ is defined on a set of real numbers by x ∗ y = xy for all real values of x and y. If x ∗ 2 = x. Find the possible values of x
- A. 0, 1
- B. 1, 2
- C. 2, 2
- D. 0, 2
Correct Answer: A. 0, 1
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