There are 1 questions in this calculation: for each question, the 2 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ second\ derivative\ of\ function\ y{\frac{1}{x}}^{2} + {y}^{2}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = \frac{y}{x^{2}} + y^{2}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( \frac{y}{x^{2}} + y^{2}\right)}{dx}\\=&\frac{y*-2}{x^{3}} + 0\\=&\frac{-2y}{x^{3}}\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( \frac{-2y}{x^{3}}\right)}{dx}\\=&\frac{-2y*-3}{x^{4}}\\=&\frac{6y}{x^{4}}\\ \end{split}\end{equation} \]

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