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

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