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Linnea Asked :

03-06-2021 Logarithm

Q. If log(a/b) + log(b/a) = log (a + b), then:

A. a + b = 1
B. a - b = 1
C. a = b
D. None of the above


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Dapzoi Verified
Commented on 2021-06-03 08:14:07 (IST)
Answer: Option A

Explanation:
=> log(a/b) + log(b/a) = log (a + b)
=> log (a + b) = log((a/b) * (b/a))
=> log 1
=> So, a + b = 1.