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UI Post-UTME Mathematics 2019 (Model questions) Question 19

Question 19

Algebraic Expressions

S = √(6/v − w/2), make V the subject

  1. A.V = 6/s2 + 12/w
  2. B.V = 12/(2s2 + w)
  3. C.V = 12/w − 2s2
  4. D.V = 12/(2s2) + w
Show the answer and explanation

Answer: B (V = 12/(2s2 + w))

Explanation

Square: s² = 6/v − w/2, so 6/v = (2s² + w)/2 and v = 12/(2s² + w).