There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ 0.75x - \frac{225}{(\frac{16x}{3} + 24)}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 0.75x - \frac{225}{(5.33333333333333x + 24)}\right)}{dx}\\=&0.75 - 225(\frac{-(5.33333333333333 + 0)}{(5.33333333333333x + 24)^{2}})\\=& - \frac{-1200}{(5.33333333333333x + 24)(5.33333333333333x + 24)} + 0.75\\ \end{split}\end{equation} \]

Your problem has not been solved here? Please take a look at the  hot problems ！