M Marcia New member Joined Oct 18, 2005 Messages 14 Oct 18, 2005 #1 lim f(x) - f(4) / (square root of x) - 2 x approaches 4 Once again, any help is appreciated. Thanks.
M Marcia New member Joined Oct 18, 2005 Messages 14 Oct 18, 2005 #3 He doesn't give f(x). He said to change the limit to a derivative and then go from there.
