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If (below), then f'(x) = ? (A) 3 (B) 1 (C) -1 (D) -3 (E) -5

$f (x) = \frac{- x^{4} + x^{2} + 1}{x}$ $f(x)=(-x^4+x^2+1)/x$

1 Answer

Nov 1, 2016

None of these. $f'(x) = -3x^2+1-1/x^2$

Explanation:

$f(x) = (-x^4+x^2+1)/x = -x^3+x+1/x$

$f'(x) = -3x^2+1-1/x^2$

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