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

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