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

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