There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ sech(\frac{1}{2}) + sin(30) + tan(50) + cot(38)\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( sech(\frac{1}{2}) + sin(30) + tan(50) + cot(38)\right)}{dx}\\=&-sech(\frac{1}{2})tanh(\frac{1}{2})*0 + cos(30)*0 + sec^{2}(50)(0) + -csc^{2}(38)*0\\=& - 0\\ \end{split}\end{equation} \]

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