設(shè)復(fù)數(shù):為實(shí)數(shù).則x= ( ) 1 (D)2 查看更多

 

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設(shè)復(fù)數(shù):為實(shí)數(shù),則x=(    )

       A.-2                     B.-1                     C.1                        D.2

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設(shè)復(fù)數(shù):z1=1+i,z2=x+2i(x∈R),若z1z2為實(shí)數(shù),則x=

[  ]

A.-2

B.-1

C.1

D.2

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設(shè)復(fù)數(shù):z1=1+i,z2=x+2i(x∈R),若z1z2為實(shí)數(shù),則x

[  ]

A.-2

B.-1

C.1

D.2

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(理)設(shè)復(fù)數(shù):z1=1+i,z2=x+2i(x∈R),若z1z2為實(shí)數(shù),則x

[  ]

A.-2

B.-1

C.1

D.2

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(理)設(shè)復(fù)數(shù):z1=1+i,z2=x+2i(x∈R),若z1z2為實(shí)數(shù),則x

[  ]

A.-2

B.-1

C.1

D.2

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