Math Help - Quick Algebra question (logs and stuff)

1. ah, so the $

x=exp\left(\frac{\ln 5 \cdot \ln 3}{\ln 7}+\frac{\ln 7 \cdot \ln 3}{\ln 4}\right) \approx 11.59699220980753
$
that I quoted really should have been

$

x=exp^{\left(\frac{\ln 5 \cdot \ln 3}{\ln 7}+\frac{\ln 7 \cdot \ln 3}{\ln 4}\right)} \approx 11.59699220980753
$

2. Originally Posted by reynardin
ah, so the $

x=exp\left(\frac{\ln 5 \cdot \ln 3}{\ln 7}+\frac{\ln 7 \cdot \ln 3}{\ln 4}\right) \approx 11.59699220980753
$
that I quoted really should have been

$

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

that is the way of expressing it

if you say exp which means exponential it means this

$exp(45x-220)=e^{45x-220}$

3. oooh. ok

4. I'm learning more on this forum than I did from 3 math classes

5. Originally Posted by reynardin
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

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

6. lol yea I can see that.

7. Originally Posted by reynardin
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

8. true, coming here is voluntary, not required

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