An operation * is defined on the set of real numbers by a*b = a
MATHEMATICS
JAMB 2001
An operation * is defined on the set of real numbers by a*b = a + b + 1. If the identity elements is -1, find the inverse of the element 2 under *.
- A. 4
- B. zero
- C. -2
- D. -4
Correct Answer: D. -4
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