There are 1 questions in this calculation: for each question, the 1 derivative of t is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ 5*3.442*2pit - 0.279sin(4.1716pit)\ with\ respect\ to\ t：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 34.42pit - 0.279sin(4.1716pit)\right)}{dt}\\=&34.42pi - 0.279cos(4.1716pit)*4.1716pi\\=& - 1.1638764picos(4.1716pit) + 34.42pi\\ \end{split}\end{equation} \]

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