logs power notation

**realistic** · November 2nd 2009, 07:31 PM

how do you get the next answer?

**VonNemo19** · November 2nd 2009, 07:41 PM

Originally Posted by realistic

how do you get the next answer?

$2^{?}=8$ ?

Nice smiley, by the way.

**jmedsy** · November 2nd 2009, 07:43 PM

log base 2 (8) is asking for x, where 2^x=8.

2^3=2*2*2=8, therefore log base 2 (8) = 3

**realistic** · November 2nd 2009, 07:45 PM

Originally Posted by VonNemo19

$2^{?}=8$ ?

Nice smiley, by the way.

ah silly me thanks

**realistic** · November 2nd 2009, 08:04 PM

express in log form stuck on this one

?

and this one write in log notation

Thread: logs power notation