I'm really bad at finding derivatives but I got (x^-1)(cos(x))+(-x^-2)(sin(x)), is that correct?
R roesing New member Joined Jun 3, 2011 Messages 4 Jun 3, 2011 #1 I'm really bad at finding derivatives but I got (x^-1)(cos(x))+(-x^-2)(sin(x)), is that correct?
G galactus Super Moderator Staff member Joined Sep 28, 2005 Messages 7,216 Jun 3, 2011 #2 Yep, it is. But, try writing without the negative exponents. \(\displaystyle \frac{xcos(x)-sin(x)}{x^{2}}\) Good work. You got it.
Yep, it is. But, try writing without the negative exponents. \(\displaystyle \frac{xcos(x)-sin(x)}{x^{2}}\) Good work. You got it.
