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Unread 20-12-2004, 20:57
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Re: Calculus Students: Need Help with Precalc Lab

The derivative of the function, f, above is

f' = [-20(x^2-4800)]/[x^4+10000*x^2+23040000]

However, the derivatives of arc functions are generally not taught in precalculus. It's a calculus subject, so I don't see why your teacher would assign such a problem. I don't think anyone could explain what derivatives are to you (much less go through all the steps to derive the arctan derivative using logarithmic differentiation) without taking many days or weeks.

[edit] Whoops, while I was away, someone already posted the answer... [/edit]
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Last edited by Yan Wang : 20-12-2004 at 20:59.
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