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题型:填空题 题类:常考题 难易度:困难
湘教版七年级数学上册 2.2列代数式 同步练习
(1+ )×(1- )= × =1,
(1+ )×(1+ )×(1- )×(1- )= × × × = × × × =1×1=1.
根据以上信息,求出下式的结果.
(1+ )×(1+ )×(1+ )×…×(1+ )×(1- )×(1- )×(1- )×(1- )×…×(1- ).
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