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Maths Fundamental of Mathematics Logarithm Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

If a 4 · b 5 = 1 then the value of log a (a 5 b 4 ) equals

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Text Solution

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The correct answer is:

a 4 b 5 = 1 ⇒ log w.r.t. a → 4 + 5log a b = log a 1 ⇒ log a b =

Now log a (a 5 b 4 ) = 5 + 4log a b = 5 + 4 =

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