WAEC Further Mathematics 2022 Objective — Question 1
Question 1 of 40 from the West African Examinations Council (WAEC) Further Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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A binary operation Δ is defined on the set of real numbers R, by x Δ y = √(x+y−xy/4), where x,y∈R. Find the value of 4Δ3.
- A. 16
- B. 8
- C. 4
- D. 2Correct
Explanation
4Δ3 = √(4+3−4(3)/4) = √(7−3) = √4 = 2.
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