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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 10: Tìm A ∪ B, A ∩ B, A \ B, A \ C, A ∩ B ∪ C, (A ∪ C)\B, (B ∩ C) ∪ A biết rằng : A = {x ∈ R , -1 < x < 5}; B = (-2;0)∪(1;6] ; C = {x

Toán Lớp 10: Tìm A ∪ B, A ∩ B, A \ B, A \ C, A ∩ B ∪ C, (A ∪ C)\B, (B ∩ C) ∪ A biết rằng : A = {x ∈ R , -1 < x < 5}; B = (-2;0)∪(1;6] ; C = {x ∈ R x ≥ 2 }.

Comments ( 1 )

  1. Giải đáp+Lời giải và giải thích chi tiết:
    $A=\{x \in \mathbb{R}|-1 < x <5\}=(-1;5)\\ B=(-2;0) \cup (1;6]\\ C=\{x \in \mathbb{R}|x \ge 2\}=[2;+\infty)\\ A \cup B=(-2;6]\\ A \cap B=(-1;0) \cup (1;5)\\ A \setminus B=[0;1]\\ A \setminus C=(-1;2)\\ A \cap B \cup C=(-1;0) \cup (1;+\infty)\\ A \cup C=(-1;+\infty)\\ (A \cup C) \setminus B=[0;1] \cup (6;+\infty)\\ B \cap C=[2;6]\\ (B \cap C) \cup A=(-1;6].$

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222-9+11+12:2*14+14 = ? ( )