Question #aef8a

1 Answer
marfre
Mar 27, 2017

y^((4)) = 24x^-5 = 24/x^5

Explanation:

Find the Fourth derivative:
y = 2x^2 + x-1 + 1/x = 2x^2 + x-1 + x^(-1)
y' = 4x + 1 -x^(-2) = 4x + 1 -1/x^2
y'' = 4 +2x^-3 = 4+2/x^3
y''' = -6x^-4 = -6/x^4
y^((4)) = 24x^-5 = 24/x^5

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