log rules

[Fairy111]

1. The problem statement, all variables and given/known data

If you have a.log(b)+ c.log(d), is that equal to,

(a+c)log(bd) or (a.c)log(bd) ?

2. Relevant equations



3. The attempt at a solution

[Cyosis]

You know that a \log b=\log b^a and you also know that \log a+\log b=\log ab. Try to apply these to your expression, to find the correct results (both the results you listed are incorrect).

[Fairy111]

So it would be log(b^a . d^c) ?

[tiny-tim]

Hi Fairy111! :smile:

(try using the X2 tag just above the Reply box :wink:)
So it would be log(b^a . d^c) ?

Yup! :biggrin: