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

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