how do you find the domain of this logerithm?

**Darkhrse99** · November 25th 2007, 09:30 AM

log5 X^3

I'm not sure where to start on this one.

Thanks

Jason

**topsquark** · November 25th 2007, 09:38 AM

Originally Posted by Darkhrse99

log5 X^3

I'm not sure where to start on this one.

Thanks

Jason

The domain of $f(x) = log_5(x)$ is $(0, \infty)$ . Does the $x^3$ change any of that?

-Dan

**Darkhrse99** · November 25th 2007, 09:57 AM

No, x^3 doesn't change that.

Thanks

Jason

**topsquark** · November 25th 2007, 10:00 AM

Originally Posted by Darkhrse99

No, x^3 doesn't change that.

Thanks

Jason

Great!

Now just to keep the juices flowing, what would the domain of $log_5(x^2)$ be?

-Dan

Thread: how do you find the domain of this logerithm?