Thursday, November 09, 2006

Test Chapter 3, #3

#3: Differentiate the function :

We know (from our concept sheet on logarithmic functions) that :

because the numerator is g'(x), or the derivative of (found with the chain rule), and the denominator is g(x) or . Then,

And finally, using trig identities (sinx/cosx = tanx)

This is choice a.


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