Recent content by silverbomb20

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    Finding Absolute Extrema on a Closed Interval

    okay so that's going to give me 9x^2=x^2? or does that -1x^-2 not cancel?
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    Finding Absolute Extrema on a Closed Interval

    in my mind...never. f1(x) = 9 + -1x^-2 so i have to set it equal to zero right? so 9 + -1x^-2=0 but that doesn't factor
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    Finding Absolute Extrema on a Closed Interval

    okay so would it be 9 + -1x^-2 ? im a history major having a lot of trouble with calculus...please help me
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    Finding Absolute Extrema on a Closed Interval

    i know i need to use the power rule to get it started, but i don't know how to apply it to the fraction.. derivative of x ^n is n * x^(n-1) right? i know the 9x would go to just 9 but i am unsure about the fraction
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    Finding Absolute Extrema on a Closed Interval

    Homework Statement FIND THE ABSOLUTE MINIMUM AND ABSOLUTE MAXIMUM OF: f(x) = 9x + 1/x on the interval [1,3] Homework Equations The Attempt at a Solution I don't know how to get started!