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Math Help - Quick Algebra question (logs and stuff)

  1. #31
    Junior Member reynardin's Avatar
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    ah, so the <br /> <br />
x=exp\left(\frac{\ln 5 \cdot \ln 3}{\ln 7}+\frac{\ln 7 \cdot \ln 3}{\ln 4}\right) \approx 11.59699220980753<br />
that I quoted really should have been

    <br /> <br />
x=exp^{\left(\frac{\ln 5 \cdot \ln 3}{\ln 7}+\frac{\ln 7 \cdot \ln 3}{\ln 4}\right)} \approx 11.59699220980753<br />
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  2. #32
    MHF Contributor Mathstud28's Avatar
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    Quote Originally Posted by reynardin View Post
    ah, so the <br /> <br />
x=exp\left(\frac{\ln 5 \cdot \ln 3}{\ln 7}+\frac{\ln 7 \cdot \ln 3}{\ln 4}\right) \approx 11.59699220980753<br />
that I quoted really should have been

    <br /> <br />
x=exp^{\left(\frac{\ln 5 \cdot \ln 3}{\ln 7}+\frac{\ln 7 \cdot \ln 3}{\ln 4}\right)} \approx 11.59699220980753<br />
    No technically its right

    that is the way of expressing it

    if you say exp which means exponential it means this

    exp(45x-220)=e^{45x-220}
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  3. #33
    Junior Member reynardin's Avatar
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    oooh. ok
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  4. #34
    Junior Member reynardin's Avatar
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    I'm learning more on this forum than I did from 3 math classes
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  5. #35
    MHF Contributor Mathstud28's Avatar
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    Quote Originally Posted by reynardin View Post
    oooh. ok
    Yes I dont like it much either but it becomes useful since you have to right smaller

    For example if you were doint diff. eqs

    exp\bigg(\int\frac{\sin(ax^5)\cos(\ln(ax^2)}{e^{\s  in(x)}\ln(\sqrt[3]{x+1})}dx\bigg)

    looks a lot nicer than

    e^{\int\frac{\sin(ax^5)\cos(\ln(ax^2)}{e^{\sin(x)}  \ln(\sqrt[3]{x+1})}dx}
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  6. #36
    Junior Member reynardin's Avatar
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    lol yea I can see that.
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  7. #37
    MHF Contributor Mathstud28's Avatar
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    Quote Originally Posted by reynardin View Post
    I'm learning more on this forum than I did from 3 math classes
    Well thats why we are here...so we can teach...we love math..but give your teacher credit...take it from me...teaching in front of a class is much more difficult than this...

    In teaching you MUST confront questions. On here if you arent sure of somethign as a helper you can just save face and not answer...

    Also we have time to respond

    And finally we dont have to deal with kids that have no interest in learning
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  8. #38
    Junior Member reynardin's Avatar
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    true, coming here is voluntary, not required
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