在数学教学中，可利用Sketchpad软件绘制各类函数图像。下面介绍如何创建函数f(x)=arcsin(x?)及其对应图像，帮助直观理解其变化规律与定义域特征。 1、 启动Sketchpad，进入主操作界面。 2、 在数据菜单中选择新建函数。 3、 单击函数旁的三角图标，选取反正弦函数 ...

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Jonathan Pelto holds two clipboards with his petitions for a spot on the November ballot in 2014. Credit: Arielle Levin Becker / CT Mirror This story is part of CT Mirror Explains, an ongoing effort ...