If the binary operation ∗ is defined by m ∗ n = mn + m
MATHEMATICS
JAMB 2021
If the binary operation ∗ is defined by m ∗ n = mn + m + n for any real number m and n, find the identity of the elements under this operation
- A. e = 1
- B. e = -1
- C. e = -2
- D. e = 0
Correct Answer: D. e = 0
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