设i是虚数单位,若11+i+11-i=a+bi(a,b∈R),则a的值是()A.2B.-2C.0D.1-数学

题目简介

设i是虚数单位,若11+i+11-i=a+bi(a,b∈R),则a的值是()A.2B.-2C.0D.1-数学

题目详情

设i是虚数单位,若http://www.mofangge.com/html/qDetail/02/g0/201401/data:image/png;base64,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,则a的值是(  )
A.2B.-2C.0D.1
题型:单选题难度:中档来源:不详

答案

D

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