'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 实数,初中中考数学实数包含:实数的相关概念,实数的大小比较,科学记数法,平方...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 实数 无限不循环小数称为无理数。 任何有限小数或无限循环小数都是有理数。 算术平...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 实数与数轴 1、数轴:规定了原点、正方向、单位长度的直线称为数轴。原点、正方向、...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 1、相反数 实数与它的相反数时一对数(只有符号不同的两个数叫做互为相反数,零的相...
'); (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' });})(); 实数比较大小的具体方法: (1)求差法: 设a,b为任意两个实数,先求出a与b的差,再根...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 实数与数轴 1、数轴:规定了原点、正方向、单位长度的直线称为数轴。原点、正方向、...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 实数的倒数、相反数和绝对值 1、相反数 实数与它的相反数时一对数(只有符号不同的两...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 实数的运算顺序: 乘方、开方为三级运算,乘、除为二级运算,加、减是一级运算,如...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 实数的运算顺序: 乘方、开方为三级运算,乘、除为二级运算,加、减是一级运算,如...