# Math Help - Integration Logs

1. ## Integration Logs

Thanks!!

2. Use the change of base property and make a simple substitution.

3. ## Re:

Thanks but

4. Nope, I mean you use $\log_{10}x=\frac{\ln x}{\ln10}$

The denominator is a constant and you only have to integrate $\frac{\ln x}x$

5. ## Re:

If there is a third row of division, could I bring it up to the second?

6. You mean for example $\frac{\dfrac ab}c$?

It's the same if we write $\frac ab:c$, then you make a cross product.

7. ## Re:

Re:

8. If we have

$x=\frac{\dfrac ab}c=\frac a{bc}$

but be careful, if we have

$x=\frac a{\dfrac bc}=\frac{ac}b$

It depends.