multiplying logs

Hi;
how do you multiply logs ie log[base2](4) * log[base2](16) I think you work out each log seperately then multiply the solution,Is this the correct process?

Here I get 8.

Also do I do the same thing with different bases?

Thanks.

Your answer is correct.

Just use the definition like you've done.

Ok do I do the same thing with different bases?

It depends, for example if you've different bases you can use:

For example:


And offcourse you can use the definition.


Is this clear?...

got to take a break from study back tommorow.

Thanks.

You're welcome! :)

No thats not clear.

What's not clear? ...

Until I know more will the way I did it work for the same and different bases?

What you did is fine, but using this log rules can be really useful sometimes. What have you learned yet about logarithms? Only the definition? ...

Yeah not much just doing logs now.