Bài tập phần tập hợp số:
(
)
[
)
∪ − =
(
]
(
)
− ∩ =
(
]
[
)
−∞ ∩ +∞ =
(
]
(
)
−∞ ∪ +∞ =
[
]
(
)
− =
[
]
(
)
− ∩ =
[
)
(
)
− ∪ +∞ =
[
]
]
(
=
(
]
[
)
−∞ ∩ +∞ =
(
)
(
]
−∞ =
[
)
(
]
∪ =
[
]
− =
»
(
)
[
]
− =
[
)
(
]
− =
[
]
(
)
=
[
]
[
]
− =
{
}
− =
»
[
]
(
)
=
(
)
[
]
=
[
]
[
)
=
[
]
(
]
=
(
)
[
]
− − =
(
)
− =
»
x
x
≥
≤
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>
≤
x
x
>
<
x
x
≥
≤
x
x
≤
≥
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x
<
≥
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x
<
>
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>
≤
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≥
≥
≤
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≤ −
≥
≤
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≤
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≤
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>
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≤
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>
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≥
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≤ ≤
≤ <
x
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− ≤ <
≤ <
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x
< ≤
≤ <
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< <
≤ <
x
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<
< <
≤
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<
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≤
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≠
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≠
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≠
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≤
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≥
<
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< ≤
≥
≤
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≤ ≤
≥
>