MathematicsBinary operationsJAMB
The operation * on real numbers is defined by a * b = ab + 1. Is the operation commutative?
Show answer
Answer: A. Yes, because ab + 1 = ba + 1 for all a and b
Multiplication is commutative, so swapping a and b gives the same result.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.