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WAEC Mathematics 2000 Question 3

Question 3

Surds

Simplify 10/√32

  1. A.(5/4)√2
  2. B.(4/5)√2
  3. C.(5/16)√2
  4. D.(16/5)√2
Show the answer and explanation

Answer: A ((5/4)√2)

Explanation

√32 = 4√2, so 10/(4√2) = 10√2/8 = (5/4)√2.