科普视频
<iframe src="https://player.bilibili.com/player.html?autoplay=false&bvid=BV1rG411D7zk" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width="100%" height="500"> </iframe>
例：公式的熟练运用
> [!question] 题干 > 求=e^{-x^2}$的导数
> [!done]- 解 > $ > \begin{aligned} > y&=e^{-x^2}\\ > dy&=d(e^{-x^2})&&两边同时微分\\ > &=e^{-x^2}d(-x^2)&&根据d(e^x)=e^xdx\\ > &=-e^{-x^2}d(x^2)&&根据d(cx)=cd(x)\\ > &=-e^{-x^2}\cdot2xdx&&根据d(x^a)=ax^{a-1}dx\\ > &=-2e^{-x^2}xdx\\ > \frac{dy}{dx}&=-2e^{-x^2} > \end{aligned} > $