There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ y*29.49 + a*1.602 + 5.252b - 2.334{a}^{2} - 4.119{b}^{2} - 0.214ab\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 29.49y - 0.214ab + 5.252b - 2.334a^{2} - 4.119b^{2} + 1.602a\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 29.49y - 0.214ab + 5.252b - 2.334a^{2} - 4.119b^{2} + 1.602a\right)}{dx}\\=&0 + 0 + 0 + 0 + 0 + 0\\=&0\\ \end{split}\end{equation} \]

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