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。\[ \begin{equation}\begin{split}【1/1】求函数cos(x)(x - cot(x))sqrt(x) 关于 x 的 1 阶导数:\\\end{split}\end{equation} \]
\[ \begin{equation}\begin{split}\\解:&\\ &原函数 = xcos(x)sqrt(x) - cos(x)sqrt(x)cot(x)\\&\color{blue}{函数的第 1 阶导数:}\\&\frac{d\left( xcos(x)sqrt(x) - cos(x)sqrt(x)cot(x)\right)}{dx}\\=&cos(x)sqrt(x) + x*-sin(x)sqrt(x) + \frac{xcos(x)*\frac{1}{2}}{(x)^{\frac{1}{2}}} - -sin(x)sqrt(x)cot(x) - \frac{cos(x)*\frac{1}{2}cot(x)}{(x)^{\frac{1}{2}}} - cos(x)sqrt(x)*-csc^{2}(x)\\=&cos(x)sqrt(x)csc^{2}(x) - xsin(x)sqrt(x) - \frac{cos(x)cot(x)}{2x^{\frac{1}{2}}} + sin(x)sqrt(x)cot(x) + \frac{x^{\frac{1}{2}}cos(x)}{2} + cos(x)sqrt(x)\\ \end{split}\end{equation} \]你的问题在这里没有得到解决?请到 热门难题 里面看看吧!