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2019年八年级数学下册第十六章二次根式16.1二次根式第2课时二次根式的性质课件（新版）新人教版.ppt

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第2课时 二次根式的性质,a,a,0,-a,代数式,知识点1:( )2=a(a0)的应用,D,D,a2,

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