高中數(shù)學(xué)第三章數(shù)系的擴(kuò)充與復(fù)數(shù)的引入3.2復(fù)數(shù)代數(shù)形式的四則運(yùn)算（第2課時(shí)）預(yù)習(xí)導(dǎo)航新人教A版選修1-2

1、高中數(shù)學(xué) 第三章 數(shù)系的擴(kuò)充與復(fù)數(shù)的引入 3.2 復(fù)數(shù)代數(shù)形式的四則運(yùn)算（第2課時(shí)）預(yù)習(xí)導(dǎo)航 新人教a版選修12課程目標(biāo)學(xué)習(xí)脈絡(luò)1掌握復(fù)數(shù)代數(shù)形式的乘、除運(yùn)算2理解復(fù)數(shù)乘法的交換律、結(jié)合律和乘法對(duì)加法的分配律3理解共軛復(fù)數(shù)的概念.1復(fù)數(shù)代數(shù)形式的乘、除法（1)運(yùn)算法則設(shè)z1abi，z2cdi(a,b,c，dr），則z1z2（abi)（cdi)(acbd）（adbc)i，i(z20)兩個(gè)復(fù)數(shù)的積與商仍然是一個(gè)確定的復(fù)數(shù)(2）乘法運(yùn)算律對(duì)于任意z1，z2，z3c，有交換律z1z2z2z1結(jié)合律(z1z2）z3(z1z2)z3乘法對(duì)加法的分配律z1(z2z3)z1z2z1z3思考1 復(fù)數(shù)的除法,其實(shí)

2、質(zhì)是分母實(shí)數(shù)化，即把分子和分母同乘以一個(gè)什么樣的數(shù)？提示：分子、分母同乘以分母的共軛復(fù)數(shù)2共軛復(fù)數(shù)的概念當(dāng)兩個(gè)復(fù)數(shù)的實(shí)部相等，虛部互為相反數(shù)時(shí)，這兩個(gè)復(fù)數(shù)叫做互為共軛復(fù)數(shù)，即復(fù)數(shù)zabi(a，br）的共軛復(fù)數(shù)abi,虛部不為零的兩個(gè)共軛復(fù)數(shù)也叫共軛虛數(shù)思考2 z與z，|的關(guān)系是怎樣的？提示：zz2|2.尊敬的讀者：本文由我和我的同事在百忙中收集整編出來(lái)，本文稿在發(fā)布之前我們對(duì)內(nèi)容進(jìn)行仔細(xì)校對(duì)，但是難免會(huì)有不盡如人意之處，如有疏漏之處請(qǐng)指正，希望本文能為您解開疑惑,引發(fā)思考。文中部分文字受到網(wǎng)友的關(guān)懷和支持，在此表示感謝！在往后的日子希望與大家共同進(jìn)步，成長(zhǎng)。this article is co

3、llected and compiled by my colleagues and i in our busy schedule. we proofread the content carefully before the release of this article, but it is inevitable that there will be some unsatisfactory points. if there are omissions, please correct them. i hope this article can solve your doubts and arouse your thinking. part of the text by the users care and support, thank you here! i hop