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OpenStudy (anonymous):
find the derivative of f(x) = 8/x at x = -1.
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OpenStudy (anonymous):
does it just mean to plug in -1 for x or do I have to use the derivative formula?
OpenStudy (anonymous):
8 is a constant so forget it for a while. The derivative of 1/x is -1/x^2. evaluated at -1 the answer is -8
OpenStudy (anonymous):
Take the derivative first then plug in -1
OpenStudy (anonymous):
is there a site where i can find the derivatives?
OpenStudy (anonymous):
nevermind I found one, thank you very much :)
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