Question

Tentukan benar atau salah pernyataan berikut ini: 1. { 1,2,3 } ⊂ { -1,0,1,2,3 } 2.{ -1,1 } ⊂ { 0,1,2,3 } 3. { } ⊂ { a,b,c,d } 4. A ⊂ { A, B } 5. { 1,2,3 } ⊂ { 1,2,3 } 6. { . } ⊂ { }

Answer 1

Answer:

I actually thought that question ask whether given set is a subset of set mentioned next.

1){ 1,2,3 } ⊂ { -1,0,1,2,3 }

Yes ,{1,2,3} is a subset of { -1,0,1,2,3 }

2.{ -1,1 } ⊂ { 0,1,2,3 }

No,{ -1,1 } is not a subset of { 0,1,2,3 } , because -1,is not present in { 0,1,2,3 }.

3. { } ⊂ { a,b,c,d }

Yes,{ } is a subset of set { a,b,c,d } ,because empty set is subset of all sets.

4. A ⊂ { A, B }

No, A is not a subset of {A,B}, if it is like that {A} ⊂ { A, B } then,it is a subset.

5. { 1,2,3 } ⊂ { 1,2,3 }

Yes,{ 1,2,3 } is a subset of { 1,2,3 }

6. { . } ⊂ { }

No,{ . } Is not a subset of { }

Hope it helps you.