If * is a binary operation on the set R of real numbers defined by a – InterviewSolution

InterviewSolution

1.	If * is a binary operation on the set R of real numbers defined by a * b = a + b - 2, then find the identity element for the binary operation *.
Answer» e ∈ R is the identity element for * if a * e = a * a = a ∀ a ∈ R or e = 2.

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