Find x if log₉x = 1.5
If log₉X= 1.5, X will be = 27.
Recall that one of the rules of logarithm states that:
If Logₐb = m, then b = aᵐ
Therefore, applying this rule, we have:
Log₉X = 1.5
9¹·⁵ = X
X = 9³‘²
X = (3²)³‘²
X = 3³ = 27
Now for the right answer to the above question:
- Option A is correct.
- Option B is not correct.
- C is incorrect.
- D is not the correct answer.
You may please note these/this:
- The basic rule of logarithm used here is stated as: If Logₐb = m, then b = aᵐ.
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/ culled from 2021 JAMB-UTME MATHEMATICS question 36 /