SOLUTION: Find f ’’(x) if
f(x) = 9 x^3 - 1 x^4 + 9
and evaluate f ’’(1). (Keep 2 decimal places)
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Question 1016418: Find f ’’(x) if
f(x) = 9 x^3 - 1 x^4 + 9
and evaluate f ’’(1). (Keep 2 decimal places)
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
For
f(x) = 9x^3 - x^4 + 9
we have
f'(x) = 27x^2 - 4x^3
f''(x) = 54x - 12x^2
f''(1) = 54 - 12 = 42
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