5.對(duì)于任意的兩個(gè)數(shù)對(duì)和.定義運(yùn)算.若.則復(fù)數(shù)為 A. B. C. D. 查看更多

 

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對(duì)于任意的兩個(gè)數(shù)對(duì),定義運(yùn)算,若,則復(fù)數(shù)為                                          (   )
A.B.C.D.

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對(duì)于任意的兩個(gè)數(shù)對(duì)(a,b)和(c,d),定義運(yùn)算(a,b)*(c,d)=ad-bc,若(1,-1)*(z,zi)=1-i,則復(fù)數(shù)z為(  )

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對(duì)于任意的兩個(gè)數(shù)對(duì)(a,b)和(c,d),定義運(yùn)算(a,b)*(c,d)=ad-bc,若(1,-1)*(z,zi)=1-i,則復(fù)數(shù)z為(  )
A.2+iB.2-iC.iD.-i

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對(duì)于任意的兩個(gè)數(shù)對(duì)(a,b)和(c,d),定義運(yùn)算(a,b)*(c,d)=ad-bc,若(1,-1)*(z,zi)=1-i,則復(fù)數(shù)z為( )
A.2+i
B.2-i
C.i
D.-i

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對(duì)于任意的兩個(gè)數(shù)對(duì)(a,b)和(c,d),定義運(yùn)算(a,b)*(c,d)=ad-bc,若(1,-1)*(z,zi)=1-i,則復(fù)數(shù)z為( )
A.2+i
B.2-i
C.i
D.-i

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