Thread: laws of logarithms

this question is trickier than i'm used too...a little help please?

Hi there.



so

and

So

Originally Posted by Stroodle

Hi there.



so

i don't understand this part, why did the 7 move to the front of the log?

Because it's in a separate bracket to the 49, it means that the logarithm is multiplied by 7. I just put it in front because that's how it is conventionally written (at least in my texts).

Originally Posted by Stroodle

Hi there.



so

and

So +\frac{1}{2}" alt="7log_7 49+log_7 \sqrt{7}=14+\frac{1}{2}" />

you forgot a sign.

Originally Posted by Raoh

you forgot a sign.

I don't get it?