有關xm6的精選大全

已知xm=6,xn=3,則x2m﹣n的值為(  )A.9                       B.39...
問題詳情:已知xm=6,xn=3,則x2m﹣n的值為()A.9                       B.39                       C.12                     D.108【回答】C解:∵xm=6,xn=3,...
已知xm=6,xn=3,則的x2m﹣n值為(    )A.9      B.     C.12    D.
問題詳情:已知xm=6,xn=3,則的x2m﹣n值為(    )A.9      B.     C.12    D.【回答】C【考點】同底數冪的除法;冪的乘方與積的乘方.【分析】根據同底數冪的除法的*質的逆用和冪的乘方的*質計算即可.【解答】解:∵...
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