等比数列{an}中.a4=4,则a2·a6等于 . 查看更多

 

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2.等比数列{an}中,a4=4,则a2·a6等于

A.4                              B.8                              C.16                                   D.32

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等比数列{an}中,a4=4,则a2·a6等于

A.4                              B.8                              C.16                                   D.32

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等比数列{an}中,a4=4,则a2·a6等于
A.4B.8C.16D.32

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(2) 等比数列{an}中,a4=4,则a2·a6等于

A.4                              B.8                              C.16                                   D.32

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等比数列{an}中,a4=2,则a2·a6等于

A.2                  B.4                  C.6                  D.8

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