Logarithm - Arithmetic Aptitude Questions and Answers

Home / Arithmetic Aptitude / Logarithm :: Discussion

If log $\frac {a} {b }$ +log $\frac {b} {a }$ =log (a + b), then

a + b = 1

a - b = 1

a = b

a² - b² = 1

Answer : Option A

Explanation :

log $\frac {a} {b }$ +log $\frac {b} {a }$ =log (a + b)

log (a + b) = log[ $\frac {a} {b } \times$ $\frac {b} {a }$ ]=log1

So, a + b = 1.

Be The First To Comment

Comments

Name