WAEC Further Mathematics 2025 Objective — Question 5
Question 5 of 40 from the West African Examinations Council (WAEC) Further Mathematics 2025 Objective paper, with the correct answer and a full explanation.
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Find the truth set of x for which (2x+3)/(4x³-x) is undefined.
- A. {0,2,4}
- B. {0,1,2}
- C. {-1/2,0,1/2}Correct
- D. {-1/2,0,2}
Explanation
The expression is undefined where the denominator is 0: 4x³-x=0 → x(4x²-1)=0 → x=0 or x=±1/2. Truth set: {-1/2,0,1/2}.
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