There are 1 questions in this calculation: for each question, the 2 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ second\ derivative\ of\ function\ 15{x}^{\frac{1}{3}}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 15{x}^{\frac{1}{3}}\right)}{dx}\\=&15({x}^{\frac{1}{3}}((0)ln(x) + \frac{(\frac{1}{3})(1)}{(x)}))\\=&\frac{5}{x^{\frac{2}{3}}}\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( \frac{5}{x^{\frac{2}{3}}}\right)}{dx}\\=&\frac{5*\frac{-2}{3}}{x^{\frac{5}{3}}}\\=&\frac{-10}{3x^{\frac{5}{3}}}\\ \end{split}\end{equation} \]

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