4.已知復(fù)平面上△AOB的頂點(diǎn)A所對(duì)應(yīng)的復(fù)數(shù)是1+2i.其重心G所對(duì)應(yīng)的復(fù)數(shù)是1+i.則以O(shè)A.OB為鄰邊的平行四邊形的對(duì)角線的長(zhǎng)為( ) (A)3 (B)2 (C)2 (D) 查看更多

 

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已知復(fù)平面上△AOB的頂點(diǎn)A所對(duì)應(yīng)的復(fù)數(shù)為1+2i,其重心G所對(duì)應(yīng)的復(fù)數(shù)為1+i,則以O(shè)A、OB為鄰邊的平行四邊形的對(duì)角線長(zhǎng)為(    )

A.3            B.2                C.2               D.

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已知復(fù)平面上AOB的頂點(diǎn)A所對(duì)應(yīng)的復(fù)數(shù)為1+2i,其重心G所對(duì)應(yīng)的復(fù)數(shù)為1+i,則以OA、OB為鄰邊的平行四邊形的對(duì)角線長(zhǎng)為(  )

  A3        B2        C2         D

 

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已知復(fù)平面上AOB的頂點(diǎn)A所對(duì)應(yīng)的復(fù)數(shù)為1+2i,其重心G所對(duì)應(yīng)的復(fù)數(shù)為1+i,則以OA、OB為鄰邊的平行四邊形的對(duì)角線長(zhǎng)為(  )

  A3        B2        C2         D

 

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已知復(fù)平面上△AOB的頂點(diǎn)A所對(duì)應(yīng)的復(fù)數(shù)為1+2i,其重心G所對(duì)應(yīng)的復(fù)數(shù)為1+i,求以O(shè)A,OB為相鄰邊的平行四邊形的對(duì)角線長(zhǎng).

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