WAEC Mathematics 2016 Objective — Question 3
Question 3 of 50 from the West African Examinations Council (WAEC) Mathematics 2016 Objective paper, with the correct answer and a full explanation.
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3. Simplify (10√3/√5 - √15)^2. A. 75.00 B. 15.00 C. 8.66 D. 3.87
- A. 75.00
- B. 15.00Correct
- C. 8.66
- D. 3.87
Explanation
Rationalizing 10√3/√5 = 2√15; (2√15-√15)^2=(√15)^2=15.
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