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

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