There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ 10cos(x){(sin(x))}^{9}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 10sin^{9}(x)cos(x)\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 10sin^{9}(x)cos(x)\right)}{dx}\\=&10*9sin^{8}(x)cos(x)cos(x) + 10sin^{9}(x)*-sin(x)\\=&90sin^{8}(x)cos^{2}(x) - 10sin^{10}(x)\\ \end{split}\end{equation} \]

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