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Math Help - easy log?help!

  1. #1
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    easy log?help!

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

     \frac{1}{2} \mid log \frac{9.8}{2.1} \mid = \frac{1}{2} log36
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  2. #2
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    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.
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  3. #3
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    i think expanding on it would not clear things up it follows from hyperbolic distance calculations.thanks anyways
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  4. #4
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    Quote Originally Posted by skystar View Post
    ...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.
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  5. #5
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    i didnt want to waste time in latex lol, dont know how good your geometry skills are either:

    1/2 (  \mid log(72)  \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)
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  6. #6
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    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.
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