Find the coordinates of the points on these curves at which the gradient has the given values.
The Attempt at a Solution
Basically the problem I have isn't really finding the answer because.....
x^(1/2)-x^-(1/2)=6/4[/b] and then from here I just used trial and error to find 4, but I want to know how I would follow it through with the algebra, i.e. only has x on one side as one term e.g. x= ans.
Thanks in advance,