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# Complete solution to Find f′(x) and f′′(x) for f(x) = 4x^5/2 − 9x^1/3 + 5.?

Show derivative long way.

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- 9 years agoFavorite Answer
f '(x)=4*(5/2)*x^(3/2)-9*(1/3)*x^(-2/3)=

=10*x^(3/2)-3*x^(-2/3)

f ''(x)=10*(3/2)*x^(1/2)-3*(-2/3)*x^(-5/3)=

=15*x^(1/2)+2*x^(-5/3)

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