Aptitude - Logarithm - Discussion

Discussion Forum : Logarithm - General Questions (Q.No. 5)
5.
If log a + log b = log (a + b), then:
b a
a + b = 1
a - b = 1
a = b
a2 - b2 = 1
Answer: Option
Explanation:

log a + log b = log (a + b)
b a

log (a + b) = log a x b = log 1.
b a

So, a + b = 1.

Discussion:
33 comments Page 3 of 4.

Divya said:   1 decade ago
I can't understand your point. Can any one please explain me?

Patil said:   6 years ago
I cannot understand please explain the method in detail.

Ravi said:   10 years ago
Formula for log x to base a.

Can anyone help me?

Dimpal said:   8 years ago
Not getting this point, please explain clearly.

Nams said:   8 years ago
a/b+b/a=ab.
a^2-2ab+b^2=0,
(a-b)^2=
a-b=0,
a=b.

Charu said:   1 decade ago
I can't got it. Please explain it more clearly.

MADHU said:   1 decade ago
Can any one explain how log(a+b)=loga+logb

Repith said:   5 years ago
Thank you very much for explaining this..
(3)

Shubham said:   7 years ago
Thanks all for giving the solution.

Bhumika Bhawarkar said:   2 years ago
Excellent explanation. Thanks.
(5)


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