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JAMB Mathematics 2008 Question 8

Question 8

Logarithms

If logx½ 64 = 3, find the value of x.

  1. A.4
  2. B.16
  3. C.32
  4. D.64
Show the answer and explanation

Answer: B (16)

Explanation

(x½)3 = 64, so x3/2 = 64 and x = 642/3 = 16.