got a simple calc question
Mar 16, 2007 at 1:57 PM Post #17 of 20
Quote:

Originally Posted by Trippytiger /img/forum/go_quote.gif
True. I've only bombed calc once.



That's actually not the product rule... The product rule deals with two differentiable functions multiplied together. What you've described is just the standard derivative of any given variable.


LOL.... oh yeah. Ive gotten way past the names at this point, so I cant tend to rember the names, just how to do them. Whats that the expononent rule. Whatever it doesnt really matter. Drop and subtract.
 
Mar 16, 2007 at 1:59 PM Post #18 of 20
Quote:

Originally Posted by axion /img/forum/go_quote.gif
I recently got maple (haven't really used it yet), but I just banged that in and I got the answer as 2/3. So let me know if that's right.


I got the same thing. Sounds like its right.
 
Mar 16, 2007 at 2:47 PM Post #19 of 20
Quote:

Originally Posted by Chef Medeski /img/forum/go_quote.gif
I got the same thing. Sounds like its right.


Yup, that's what it works out to. Amazing, Maple got something right.
 
Mar 16, 2007 at 3:14 PM Post #20 of 20
Quote:

Originally Posted by Trippytiger /img/forum/go_quote.gif
Well, (u-2)/sqrt(u) is equal to [u/sqrt(u)]-[2/sqrt(u)]. That's just basic math, and easy to see, right?


Doh, I just assumed the OP had simplified the expression. I really need to brush up on this. Did my last calculus at A-level 12 years ago
 
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