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。\[ \begin{equation}\begin{split}【1/1】求函数\frac{(580{x}^{4} + 490{x}^{2} - 420{x}^{3} - 420x + 90)}{(14x - 3)} 关于 x 的 1 阶导数:\\\end{split}\end{equation} \]
\[ \begin{equation}\begin{split}\\解:&\\ &原函数 = \frac{580x^{4}}{(14x - 3)} + \frac{490x^{2}}{(14x - 3)} - \frac{420x^{3}}{(14x - 3)} - \frac{420x}{(14x - 3)} + \frac{90}{(14x - 3)}\\&\color{blue}{函数的第 1 阶导数:}\\&\frac{d\left( \frac{580x^{4}}{(14x - 3)} + \frac{490x^{2}}{(14x - 3)} - \frac{420x^{3}}{(14x - 3)} - \frac{420x}{(14x - 3)} + \frac{90}{(14x - 3)}\right)}{dx}\\=&580(\frac{-(14 + 0)}{(14x - 3)^{2}})x^{4} + \frac{580*4x^{3}}{(14x - 3)} + 490(\frac{-(14 + 0)}{(14x - 3)^{2}})x^{2} + \frac{490*2x}{(14x - 3)} - 420(\frac{-(14 + 0)}{(14x - 3)^{2}})x^{3} - \frac{420*3x^{2}}{(14x - 3)} - 420(\frac{-(14 + 0)}{(14x - 3)^{2}})x - \frac{420}{(14x - 3)} + 90(\frac{-(14 + 0)}{(14x - 3)^{2}})\\=&\frac{-8120x^{4}}{(14x - 3)^{2}} + \frac{2320x^{3}}{(14x - 3)} - \frac{6860x^{2}}{(14x - 3)^{2}} + \frac{980x}{(14x - 3)} + \frac{5880x^{3}}{(14x - 3)^{2}} - \frac{1260x^{2}}{(14x - 3)} + \frac{5880x}{(14x - 3)^{2}} - \frac{1260}{(14x - 3)^{2}} - \frac{420}{(14x - 3)}\\ \end{split}\end{equation} \]你的问题在这里没有得到解决?请到 热门难题 里面看看吧!