There are 1 questions in this calculation: for each question, the 4 derivative of i is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ 4th\ derivative\ of\ function\ e^{liog}\ with\ respect\ to\ i：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = e^{logi}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( e^{logi}\right)}{di}\\=&e^{logi}log\\=&loge^{logi}\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( loge^{logi}\right)}{di}\\=&loge^{logi}log\\=&l^{2}o^{2}g^{2}e^{logi}\\\\ &\color{blue}{The\ third\ derivative\ of\ function:} \\&\frac{d\left( l^{2}o^{2}g^{2}e^{logi}\right)}{di}\\=&l^{2}o^{2}g^{2}e^{logi}log\\=&l^{3}o^{3}g^{3}e^{logi}\\\\ &\color{blue}{The\ 4th\ derivative\ of\ function:} \\&\frac{d\left( l^{3}o^{3}g^{3}e^{logi}\right)}{di}\\=&l^{3}o^{3}g^{3}e^{logi}log\\=&l^{4}o^{4}g^{4}e^{logi}\\ \end{split}\end{equation} \]

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