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WAEC Mathematics 1998 Question 11

Question 11

Algebraic Expressions

Make S the subject of the formula: V = K/√(T − S)

  1. A.S = T − K2/V2
  2. B.S = (K2 − T)/V2
  3. C.S = T − V2/K2
  4. D.S = T(V2 − K2)/V2
  5. E.S = (T + V2)/K2
Show the answer and explanation

Answer: A (S = T − K2/V2)

Explanation

√(T − S) = K/V, so T − S = K2/V2 and S = T − K2/V2.