There are 1 questions in this calculation: for each question, the 1 derivative of X is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ 7pisin(\frac{(pi(X - 210))}{30})\ with\ respect\ to\ X：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 7pisin(\frac{1}{30}piX - 7pi)\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 7pisin(\frac{1}{30}piX - 7pi)\right)}{dX}\\=&7picos(\frac{1}{30}piX - 7pi)(\frac{1}{30}pi + 0)\\=&\frac{7p^{2}i^{2}cos(\frac{1}{30}piX - 7pi)}{30}\\ \end{split}\end{equation} \]

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