Is this "legal" what I did? I mean switching to t like this?
I try, but it gives the following error:
scan0001.jpg:
This is not a valid image file.
Anyway, I used another service, can u see this one?
Image Hosting
And another thing, is it possible that x=0, according to the point they gave?
10x again.
\overline{F}=\frac{\sin(y)}{\sqrt{x}}\hat{i}+2\sqr t{x}\hat{j}
L:y=\sqrt{x}
A(0,0)
B(\frac{\pi^2}{4},\frac{\pi}{2})
x=z\Rightarrow{y=\sqrt{z}} 0\leqslant{L}\leqslant\frac{\pi^2}{4}
You beter hope taht whoever has time to help you with this knows LaTeX well
EDIT:
Forgot about this, for those who do have image hosting.