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WAEC Mathematics 2006 Question 3

Question 3

Indices

Simplify: (252/3 ÷ 251/6) / ((1/5)−7/6 × (1/5)1/6)

  1. A.25
  2. B.1
  3. C.1/5
  4. D.1/25
Show the answer and explanation

Answer: B (1)

Explanation

Numerator: 252/3 − 1/6 = 251/2 = 5. Denominator: (1/5)−7/6 + 1/6 = (1/5)−1 = 5. So the value is 5 ÷ 5 = 1.