WAEC Further Mathematics 2006 Question 3

Question 3

Indices and Logarithms

Simplify √((−1/64)−2/3)

  1. A.−4
  2. B.−¼
  3. C.½
  4. D.4
Show the answer and explanation

Answer: D (4)

Explanation

(−1/64)−2/3 = (−64)2/3 = (−4)² = 16, and √16 = 4.