文档介绍：菜单菜单第四章平面向量、数系的扩充与复数的引入高考热点聚焦高考热点聚焦课前自主学案课前自主学案课堂互动讲案课堂互动讲案课后巩固练案课后巩固练案高三总复习·数学( BSD 版) Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 菜单菜单第四章平面向量、数系的扩充与复数的引入高考热点聚焦高考热点聚焦课前自主学案课前自主学案课堂互动讲案课堂互动讲案课后巩固练案课后巩固练案高三总复习·数学( BSD 版) 【答案】 D Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 菜单菜单第四章平面向量、数系的扩充与复数的引入高考热点聚焦高考热点聚焦课前自主学案课前自主学案课堂互动讲案课堂互动讲案课后巩固练案课后巩固练案高三总复习·数学( BSD 版) 【答案】 B Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 菜单菜单第四章平面向量、数系的扩充与复数的引入高考热点聚焦高考热点聚焦课前自主学案课前自主学案课堂互动讲案课堂互动讲案课后巩固练案课后巩固练案高三总复习·数学( BSD 版) Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 菜单菜单第四章平面向量、数系的扩充与复数的引入高考热点聚焦高考热点聚焦课前自主学案课前自主学案课堂互动讲案课堂互动讲案课后巩固练案课后巩固练案高三总复习·数学( BSD 版) 【答案】 C Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 菜单菜单第四章平面向量、数系的扩充与复数的引入高考热点聚焦高考热点聚焦课前自主学案课前自主学案课堂互动讲案课堂互动讲案课后巩固练案课后巩固练案高三总复习·数学( BSD 版) 4. (2012 · 重庆高考)若(1+i )(2 +i)=a+bi ,其中 a, b∈R,i为虚数单位,则 a+b=________. 【解析】由(1+i )(2 +i)=a+bi,得 1+3i=a+bi ,根据复数相等得 a=1,b=3 ,所以 a+b =4.【答案】 4 Evaluation only. Evaluation only. Created with Client Profile . Created with Clie