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

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