Science talk:Math Exam Resources/Courses/MATH101/April 2011/Question 4 (a)/Hint 1

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I think a better hint would be:

If $u={\sqrt {x}},$ then $\displaystyle {x=u^{2}}$ and $\displaystyle {dx=2u{\text{ }}du}$

Hey Kyle,

I think using the talk page of the question itself instead of this subpage will be more useful. I just found this. Cheers,

This question is a good candidate to have multiple hints.