已知M={m│m-4/2∈Z},N={x│x+3/2∈N},求M∩N?
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已知M={m│m-4/2∈Z},N={x│x+3/2∈N},求M∩N?
已知M={m│m-4/2∈Z},N={x│x+3/2∈N},求M∩N?
已知M={m│m-4/2∈Z},N={x│x+3/2∈N},求M∩N?
(m-4)/2=m/2-2属于Z,则m是偶数,A是偶数集
(x+3)/2是自然数,则(x+3)是非负偶数,所以B={-3,-1}∪正奇数集
A交B=空集