Question

If A and B are two sets such that ACB
then what is A UB?​

Answer 1

Answer:

A

Step-by-step explanation:

since A contains B

therefore Every elements that B has is also present in A

hence the answer for A union B is A.

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Answer 2

Answer:

A⊂B means.. A is a proper subset of B.

That shows set A contains all the elements of set B but at least one less than B or else would be equal.

A UB gives us a set with elements from both sets A and B.