What is the derivative of $1/(x^4)$ ?

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Answer 1 · 2017-06-07T12:47:53

$-4/x^5$

$"express " 1/x^4=x^-4$

$"differentiate using the "color(blue)"power rule"$

$• d/dx(ax^n)=nax^(n-1)$

$rArrd/dx(1/x^4)$

$=-4x^-5=-4/x^5$

What is the derivative of 1/(x^4)1/(x^4)?