Finding a Second Derivative In Exercises 91, 92, 93, 94, 95, 96, 97, 98, 99, and 100, find the second derivative of the function.
Given:
[tex]f(x)=x^2+3x^{-3}[/tex]The first derivative is:
[tex]\begin{gathered} f^{\prime}(x)=2x^{2-1}+3\cdot(-3)x^{-3-1} \\ Simplify \\ f^{\prime}(x)=2x-9x^{-4} \end{gathered}[/tex]And the second derivative is:
[tex]f^{\prime}^{\prime}(x)=2x^{1-1}-9(-4)x^{-4-1}=2(1)+36x^{-5}=2+36x^{-5}[/tex]Answer:
[tex]\begin{equation*} 2+36x^{-5} \end{equation*}[/tex]