## [windows2000] Re: OT - Math Question

• From: "Costanzo, Ray" <RCostanzo@xxxxxxxxxxxxxxxxxxxxx>
• To: <windows2000@xxxxxxxxxxxxx>
• Date: Wed, 29 Nov 2006 09:51:29 -0500

```There is not a chance in hell I could ever do this.  It's depressing.
Take me back to high school and I think I could do it.  Now, 13 years
later, I don't have a clue where to begin.  I briefly discussed it with
my brother who said:

<quote>
I don't have time to look at it right now, but my first thought would be
to use the natural log function to pull x out of the exponent.

Example:

e^x = 4

ln(e^x) = ln(4)

x(ln(e)) = ln(4)

x = ln(4)

Your equation may not be so easy, because you'll have ln(e^x + e^-x), so
you can't just move the x out of the exponent.
</quote>

Ray at work

-----Original Message-----
From:  Ron Leach

It's been a long while in doing the math problems, so please pardon the
OT.

I was wondering if anyone would be able to help with the following math
problem (a little break from the normal stuff :-))

1/2(e^x + e^-x) = 4, solve for x.

Thanks!

Ron

PS  Maybe Jim has a math list? ;-)
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