问题
填空题
若集合M={x||x|≤2},N={x|x2-3x=0},则M∩N=______.
答案
由集合M中的不等式|x|≤2,解得-2≤x≤2,
集合M=[-2,2];
由集合N中的方程x2-3x=0,得x(x-3)=0,解得x=0,x=3,
∴集合N={0,3}.
∴M∩N={0}.
故答案为:{0}.
若集合M={x||x|≤2},N={x|x2-3x=0},则M∩N=______.
由集合M中的不等式|x|≤2,解得-2≤x≤2,
集合M=[-2,2];
由集合N中的方程x2-3x=0,得x(x-3)=0,解得x=0,x=3,
∴集合N={0,3}.
∴M∩N={0}.
故答案为:{0}.
根据句意及首字母或图片提示完成单词。 | |
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