本次共计算 1 个题目:每一题对 x 求 1 阶导数。
注意,变量是区分大小写的。\[ \begin{equation}\begin{split}【1/1】求函数(16 - xx){\frac{1}{(4 + 0.25xx)}}^{2} 关于 x 的 1 阶导数:\\\end{split}\end{equation} \]
\[ \begin{equation}\begin{split}\\解:&\\ &原函数 = - \frac{x^{2}}{(0.25x^{2} + 4)(0.25x^{2} + 4)} + \frac{16}{(0.25x^{2} + 4)(0.25x^{2} + 4)}\\&\color{blue}{函数的第 1 阶导数:}\\&\frac{d\left( - \frac{x^{2}}{(0.25x^{2} + 4)(0.25x^{2} + 4)} + \frac{16}{(0.25x^{2} + 4)(0.25x^{2} + 4)}\right)}{dx}\\=& - \frac{(\frac{-(0.25*2x + 0)}{(0.25x^{2} + 4)^{2}})x^{2}}{(0.25x^{2} + 4)} - \frac{(\frac{-(0.25*2x + 0)}{(0.25x^{2} + 4)^{2}})x^{2}}{(0.25x^{2} + 4)} - \frac{2x}{(0.25x^{2} + 4)(0.25x^{2} + 4)} + \frac{16(\frac{-(0.25*2x + 0)}{(0.25x^{2} + 4)^{2}})}{(0.25x^{2} + 4)} + \frac{16(\frac{-(0.25*2x + 0)}{(0.25x^{2} + 4)^{2}})}{(0.25x^{2} + 4)}\\=& - \frac{-0.5x^{3}}{(0.25x^{2} + 4)(0.25x^{2} + 4)(0.25x^{2} + 4)} + \frac{0.5x^{3}}{(0.25x^{2} + 4)(0.25x^{2} + 4)(0.25x^{2} + 4)} - \frac{2x}{(0.25x^{2} + 4)(0.25x^{2} + 4)} - \frac{8x}{(0.25x^{2} + 4)(0.25x^{2} + 4)(0.25x^{2} + 4)} - \frac{8x}{(0.25x^{2} + 4)(0.25x^{2} + 4)(0.25x^{2} + 4)}\\ \end{split}\end{equation} \]你的问题在这里没有得到解决?请到 热门难题 里面看看吧!