Ok, I worked this derivative problem, but my book has a different answer than what I got. I'm not sure why.(adsbygoogle = window.adsbygoogle || []).push({});

I need to compute the derivative of log base3 of (x^3 + 2x)

I came out with:

1/((x^3 + 2x)ln3)

The book says that the answer is the same as mine except the numerator has a (3x^2 + 2) in it.

Why would you put the derivative of the x value of the log function in the numerator.

My book says that D log base a of x = 1/xlna

help?

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# Homework Help: Am I right?

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