The identity element for the binary operation * defined on Q – {0} as a * b = ∀ a, b ∈ Q – {0) is
A. 1
B. 0
C. 2
D. None of these
Answer:C
The identity element for the binary operation * defined on Q – {0} as a * b = ∀ a, b ∈ Q – {0) is
A. 1 B. 0 C. 2 D. None of these