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WAEC Mathematics 1991 (August) Question 3

Question 3

Indices

Simplify: (1/4)−1½

  1. A.1/8
  2. B.1/4
  3. C.2
  4. D.4
  5. E.8
Show the answer and explanation

Answer: E (8)

Explanation

(1/4)−3/2 = 43/2 = (√4)3 = 23 = 8.