I took a math test a couple of days ago, and I studied for about an hour and a half prior to taking the test, and I forgot to brush up on Expanding and Condensing Logarithms.
During the test, I completely blanked, and I'm still blanking on logarithm rules, and I need someone to explain them quickly to me.
So if you have the equation: log x - log y + log z, would the answer look like this (condensed:)
log XZ/Y or Log x/y * z?
I can't quite decide if the first or second one is right. I used the first one (log XZ/Y) on my test, but I'm not completely sure. My friend, who I asked after the test, says its the second one, and he's really good at logarithms.
I have a 93.5% in the class, and that test was basically my midterm.
I'm really nervous :(
During the test, I completely blanked, and I'm still blanking on logarithm rules, and I need someone to explain them quickly to me.
So if you have the equation: log x - log y + log z, would the answer look like this (condensed:)
log XZ/Y or Log x/y * z?
I can't quite decide if the first or second one is right. I used the first one (log XZ/Y) on my test, but I'm not completely sure. My friend, who I asked after the test, says its the second one, and he's really good at logarithms.
I have a 93.5% in the class, and that test was basically my midterm.
I'm really nervous :(
-
If you mean log(xz/y) and (log(x/y))z, your friend is incorrect.
http://www.flickr.com/photos/dwread/7033…
http://www.flickr.com/photos/dwread/7033…