JAMB Mathematics 2014 Question 9

Question 9

Logarithms

Evaluate log2 8 + log2 16 − log2 4.

  1. A.6
  2. B.3
  3. C.4
  4. D.5
Show the answer and explanation

Answer: D (5)

Explanation

log2 8 = 3, log2 16 = 4 and log2 4 = 2, so the value is 3 + 4 − 2 = 5.