There are 1 questions in this calculation: for each question, the 2 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ second\ derivative\ of\ function\ log*4 * {\frac{1}{7}}^{x}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 4log{\frac{1}{7}}^{x}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 4log{\frac{1}{7}}^{x}\right)}{dx}\\=&4log({\frac{1}{7}}^{x}((1)ln(\frac{1}{7}) + \frac{(x)(0)}{(\frac{1}{7})}))\\=&4log{\frac{1}{7}}^{x}ln(\frac{1}{7})\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( 4log{\frac{1}{7}}^{x}ln(\frac{1}{7})\right)}{dx}\\=&4log({\frac{1}{7}}^{x}((1)ln(\frac{1}{7}) + \frac{(x)(0)}{(\frac{1}{7})}))ln(\frac{1}{7}) + \frac{4log{\frac{1}{7}}^{x}*0}{(\frac{1}{7})}\\=&4log{\frac{1}{7}}^{x}ln^{2}(\frac{1}{7})\\ \end{split}\end{equation} \]

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