Hopefully a simple exponent question.

1. Aug 5, 2007

EngineeredVision

Hey guys,

It's been a while since I've even done simple exponent-based math.

I'm trying to solve for x where 1.00062142^x = 4

I realize that this could also be written as the X root of 4 = 1.00062142 but this doesn't help me either because I don't know how to solve for it either way. I'd really appreciate an explanation for how this is solved as opposed to just giving me the answer for X.

This doesn't require Logs does it?

Sorry for such a stupid question. Any help will be greatly appreciated.

2. Aug 5, 2007

CRGreathouse

Yep, it's easy with logs and difficult/impossible without.

3. Aug 5, 2007

BSMSMSTMSPHD

Yes, it requires logs. Or, if you're just looking for an approximate answer, you can just try values until you hone in on it.

I just did this for 5 minutes and came up with the integer part of the solution just by playing with Windows calculator.

If you want to solve general, more difficult problems, you'll need to learn logs.

Last edited: Aug 5, 2007