WAEC Mathematics 2025 Objective — Question 3
Question 3 of 51 from the West African Examinations Council (WAEC) Mathematics 2025 Objective paper, with the correct answer and a full explanation.
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Simplify: [(16/9)^(-3/2) x 16^(-3/4)]^(1/3).
- A. 3/4
- B. 9/16
- C. 3/8
- D. 1/4Correct
Explanation
Rewriting (16/9)^(-3/2) as (4/3)^3 and 16^(-3/4) as (4/3)^(-3) [via 2^(-3)], the expression simplifies within the outer cube root to give 1/4.
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