Tìm tập con của các tập hợp sau a/ A={2,3}. b/ B={a,b,c}

2 câu trả lời

Đáp án:

Giải thích các bước giải: \(\begin{array}{l}a)\,A = \left\{ {2;3} \right\}\\Cac\,tap\,con\,cua\,A\,la:\\A \subset A\\M = \left\{ 2 \right\} \subset A\\N = \left\{ 3 \right\} \subset A\\Q = \left\{ \emptyset \right\} \subset A\end{array}\) \(\begin{array}{l}b/{\rm{ }}B = \left\{ {a,b,c} \right\}\\Tap\,\,con\,cua\,B\,la:\\B \subset B\\\left\{ {a;b} \right\};\,\,\,\left\{ {b;c} \right\}\,\,;\,\,\,\left\{ {c;a} \right\}\,\, \subset B\\\left\{ a \right\};\,\,\left\{ b \right\};\;\left\{ c \right\} \subset B\end{array}\)

Các tập con:

a,

$\{\varnothing\}$

$\{2\}$

$\{3\}$

$\{2;3\}$ 

b,

$\{\varnothing\}$ 

$\{a\}$

$\{b\}$

$\{c\}$

$\{a;b\}$

$\{b;c\}$

$\{a;c\}$

$\{a;b;c\}$

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