MathematicsBinary operationsWAEC
If x Δ y = x² − 2y, evaluate (3 Δ 1) Δ 2.
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Answer: A. 45
3 Δ 1 = 9 − 2 = 7; then 7 Δ 2 = 49 − 4 = 45.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.
Mathematics · Binary operations
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