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。\[ \begin{equation}\begin{split}【1/1】求函数xln(x + sqrt({x}^{2} - {a}^{2})) - sqrt({x}^{2} - {a}^{2}) 关于 x 的 1 阶导数:\\\end{split}\end{equation} \]
\[ \begin{equation}\begin{split}\\解:&\\ &原函数 = xln(x + sqrt(x^{2} - a^{2})) - sqrt(x^{2} - a^{2})\\&\color{blue}{函数的第 1 阶导数:}\\&\frac{d\left( xln(x + sqrt(x^{2} - a^{2})) - sqrt(x^{2} - a^{2})\right)}{dx}\\=&ln(x + sqrt(x^{2} - a^{2})) + \frac{x(1 + \frac{(2x + 0)*\frac{1}{2}}{(x^{2} - a^{2})^{\frac{1}{2}}})}{(x + sqrt(x^{2} - a^{2}))} - \frac{(2x + 0)*\frac{1}{2}}{(x^{2} - a^{2})^{\frac{1}{2}}}\\=&ln(x + sqrt(x^{2} - a^{2})) + \frac{x}{(x + sqrt(x^{2} - a^{2}))} + \frac{x^{2}}{(x + sqrt(x^{2} - a^{2}))(x^{2} - a^{2})^{\frac{1}{2}}} - \frac{x}{(x^{2} - a^{2})^{\frac{1}{2}}}\\ \end{split}\end{equation} \]你的问题在这里没有得到解决?请到 热门难题 里面看看吧!