JAMB Mathematics 1992 Question 3

Question 3

Logarithms

Evaluate logb an if b = a1/n.

  1. A.n2
  2. B.n
  3. C.1/n
  4. D.1/n
Show the answer and explanation

Answer: A (n2)

Explanation

b = a1/n means a = bn, so an = bn². Hence logb an = n2.