Quick n easy derivative question

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SUMMARY

The discussion centers on the derivative of the function 33x, where the user questions the application of the chain rule. The correct derivative, as confirmed by other participants, is (ln3)(3x), indicating that the user misapplied the chain rule. The confusion arises from the interpretation of the expression, which is clarified to be 3(3x). Understanding the correct application of logarithmic differentiation is crucial for solving such problems accurately.

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I'm trying to study for my final on friday from past exams and their keys, and one question is the integral of 3x+3x

I get through it all fine, but then according to the key, the derivative of 33x is just (ln3)(3x)

so here's my question, I thought that by chain rule, it should end up being
(ln3)(33x)(ln3)(3x) shouldn't it?
 
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shft600 said:
I'm trying to study for my final on friday from past exams and their keys, and one question is the integral of 3x+3x

I get through it all fine, but then according to the key, the derivative of 33x is just (ln3)(3x)

so here's my question, I thought that by chain rule, it should end up being
(ln3)(33x)(ln3)(3x) shouldn't it?

What is the question -- 3x+3x or 33x? Assuming the latter, which would usually be parsed as 3(3x) the derivative would be what you have said.
 

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