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OpenStudy (anonymous):
PLEASE HELP!!! f(x)= sqrt(x^4-16x^2) a)Find the domain of f. b) Find f '(x) c) Find the slope of the line normal to the graph of f at x = 5
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sam (.sam.):
Domain in attachment
sam (.sam.):
b) Find f '(x) \[\sqrt{(x-4)}+\frac{x}{2\sqrt{x-4}}\]
OpenStudy (anonymous):
thank you very much by any chance do you know c
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