November 14th, 2007, 02:25 AM
|
 | MHF Contributor | | Join Date: Aug 2007 Location: Leeds, UK
Posts: 2,065
Country:  Thanks: 126
Thanked 1,261 Times in 1,048 Posts
| |
Quote:
Originally Posted by jabroni1212  If ![f(x)=3x^2-\frac{8}{x '}\](http://www.mathhelpforum.com/math-help/latex2/img/1ec16d41a1acd7c36cbcb02be11d1294-1.gif "f(x)=3x^2-\frac{8}{x '}\") , find the positive value of  for which  is least.
I don't think I have ever seen a function with x' mixed up in there and I can't seem to even get started. Thanks in advance for any help. | Are you sure that the prime on the x is not just a comma (not part of the formula at all)? |