'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 我们今天采用函数图象法秒解一道平面直角坐标系点坐标题目,例题本身比较简单,常...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 在平面内,两条互相垂直且有公共原点的数轴组成平面直角坐标系。 水平的数轴称为...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})();...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 定义 有一组邻边相等的平行四边形叫做菱形(rhombus). 性质 ①菱形的四条边都相等; ②菱...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 【例题】 如图①,在四边形ABCD中,ACBD于点E,AB=AC=BD,点M为BC中点,N为线段AM上的点,...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 易错点1:平行四边形的性质和判定,如何灵活、恰当地应用。三角形的稳定性与四边形...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})();...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 我认为学生在学习几何的过程中要过好以下四关: 1概念关 初中几何将逻辑性与直观性...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); ①直线和圆无公共点,称相离。AB与圆O相离,dr。 ②直线和圆有两个公共点,称相交,...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})();...