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

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