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

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