JAMB Mathematics 1986 Question 15

Question 15

Indices

Simplify (9⅓ × 27−½)/(3−⅙ × 3−⅔)

  1. A.1/3
  2. B.1
  3. C.3
  4. D.9
Show the answer and explanation

Answer: B (1)

Explanation

The top is 3^(2/3) × 3^(−3/2) = 3^(−5/6) and the bottom is 3^(−1/6 − 2/3) = 3^(−5/6). They are equal, so the value is 1.