Further MathematicsSets, binary operations and logicWAEC
A binary operation * is defined on the real numbers by a * b = a + b − 2ab. Find 3 * 2.
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Answer: A. −7
3 + 2 − 2(3)(2) = 5 − 12 = −7.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.