A binary operation ⊗ defined on the set of integers is such that m⊗n =
MATHEMATICS
JAMB 2009
A binary operation ⊗ defined on the set of integers is such that m⊗n = m + n + mn for all integers m and n. Find the inverse of -5 under this operation, if the identity element is 0?
- A. -5/4
- B. -5/6
- C. zero
- D. 5
Correct Answer: A. -5/4
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