1. ## easy log?help!

can someone please explain how i get from one step to another here?i dont understand the manipulation thats happened.

$\displaystyle \frac{1}{2} \mid log \frac{9.8}{2.1} \mid = \frac{1}{2} log36$

2. Well, since 9.8/2.1 = 4.6666666..., it is unlikely that a rational explanation will be provided. Of course, if you aren't sharing the entire problem statement, you could perhaps elicit a better response by the additional disclosure.

3. i think expanding on it would not clear things up it follows from hyperbolic distance calculations.thanks anyways

4. Originally Posted by skystar
...follows from hyperbolic distance calculations.
Aha! Another clue. Got any more?

I was not recommending anything, just trying to drag out more information. One more round and we might have it.

5. i didnt want to waste time in latex lol, dont know how good your geometry skills are either:

1/2 ( $\displaystyle \mid$ log(72) $\displaystyle \mid$ = to the step i posted orginally, this probably wont make much more sense.

but the example question these workings are from is to find the hyperbolic distance between the points:

P= 3+3i and Q= -4 +4i (which will give an h-line |z+1|=5 ..to save time)

6. My geometry? Not that good, but as a general rule, you will get a better response if you:

1) Post in the right classification.
2) Provide all useful information.