用适当的符号“属于”,“不属于”,“等于”,“真包含”,“真包含于”填空:(1)-3____{-3,3};(2)-2____{x丨绝对值x=2};(3)3___{-3,0};(4){-2}____{x丨绝对值x=2};(5){-1,1}_____{x丨x^2=1};(6){-2,-1,0}____{-2,-1};(7)空集__
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/18 17:33:10
![用适当的符号“属于”,“不属于”,“等于”,“真包含”,“真包含于”填空:(1)-3____{-3,3};(2)-2____{x丨绝对值x=2};(3)3___{-3,0};(4){-2}____{x丨绝对值x=2};(5){-1,1}_____{x丨x^2=1};(6){-2,-1,0}____{-2,-1};(7)空集__](/uploads/image/z/6996048-24-8.jpg?t=%E7%94%A8%E9%80%82%E5%BD%93%E7%9A%84%E7%AC%A6%E5%8F%B7%E2%80%9C%E5%B1%9E%E4%BA%8E%E2%80%9D%2C%E2%80%9C%E4%B8%8D%E5%B1%9E%E4%BA%8E%E2%80%9D%2C%E2%80%9C%E7%AD%89%E4%BA%8E%E2%80%9D%2C%E2%80%9C%E7%9C%9F%E5%8C%85%E5%90%AB%E2%80%9D%2C%E2%80%9C%E7%9C%9F%E5%8C%85%E5%90%AB%E4%BA%8E%E2%80%9D%E5%A1%AB%E7%A9%BA%3A%281%29-3____%7B-3%2C3%7D%3B%282%29-2____%7Bx%E4%B8%A8%E7%BB%9D%E5%AF%B9%E5%80%BCx%3D2%7D%3B%283%293___%7B-3%2C0%7D%3B%284%29%7B-2%7D____%7Bx%E4%B8%A8%E7%BB%9D%E5%AF%B9%E5%80%BCx%3D2%7D%3B%285%29%7B-1%2C1%7D_____%7Bx%E4%B8%A8x%5E2%3D1%7D%3B%286%29%7B-2%2C-1%2C0%7D____%7B-2%2C-1%7D%3B%287%29%E7%A9%BA%E9%9B%86__)
用适当的符号“属于”,“不属于”,“等于”,“真包含”,“真包含于”填空:(1)-3____{-3,3};(2)-2____{x丨绝对值x=2};(3)3___{-3,0};(4){-2}____{x丨绝对值x=2};(5){-1,1}_____{x丨x^2=1};(6){-2,-1,0}____{-2,-1};(7)空集__
用适当的符号“属于”,“不属于”,“等于”,“真包含”,“真包含于”填空:(1)-3____{-3,3};(2)-2____{x丨绝对值x=2};(3)3___{-3,0};(4){-2}____{x丨绝对值x=2};(5){-1,1}_____{x丨x^2=1};(6){-2,-1,0}____{-2,-1};(7)空集_____{2,3};(8){0}____空集;(9){0,1}_____{x丨x大于等于-1};(10){x丨x
用适当的符号“属于”,“不属于”,“等于”,“真包含”,“真包含于”填空:(1)-3____{-3,3};(2)-2____{x丨绝对值x=2};(3)3___{-3,0};(4){-2}____{x丨绝对值x=2};(5){-1,1}_____{x丨x^2=1};(6){-2,-1,0}____{-2,-1};(7)空集__
(1)-3__属于__{-3,3};(2)-2__属于__{x丨绝对值x=2};(3)3__不属于_{-3,0};(4){-2}__真包含于__{x丨绝对值x=2};(5){-1,1}__等于___{x丨x^2=1};(6){-2,-1,0}__真包含__{-2,-1};(7)空集___真包含于__{2,3};(8){0}__真包含__空集;(9){0,1}___真包含于__{x丨x大于等于-1};(10){x丨x