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anonymous
 5 years ago
Find f '(x) for the function: (9lnx)/x^4
I've gotten it to (9x^39lnx X 4x^3)/x^8, but I'm not sure how to simplify it further than that... help?
anonymous
 5 years ago
Find f '(x) for the function: (9lnx)/x^4 I've gotten it to (9x^39lnx X 4x^3)/x^8, but I'm not sure how to simplify it further than that... help?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I know it will be [9(1???)]/x^5, but I don't know what else goes in the parenthesis.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Factor out x^3 from the numerator then reduce with denominator
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