There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ 2xsqrt(\frac{1}{0.64} + 4{x}^{2})\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 2xsqrt(4x + 1.5625)\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 2xsqrt(4x + 1.5625)\right)}{dx}\\=&2sqrt(4x + 1.5625) + \frac{2x(4 + 0)*0.5}{(4x + 1.5625)^{\frac{1}{2}}}\\=&2sqrt(4x + 1.5625) + \frac{4x}{(4x + 1.5625)^{\frac{1}{2}}}\\ \end{split}\end{equation} \]

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