摘要: First \[\begin{align} \lim_{x \to 0} \frac{1-\cos{x}}{x^{2} } =? \\ \\ \because 1-\cos{x} = \sin^{2}{x} \\ \therefore \lim_{x \to 0} \frac{1-\cos{x}}{ 阅读全文
posted @ 2022-07-17 11:52 Preparing 阅读(39) 评论(0) 推荐(0) 编辑