Question

If A CB then AUB=
A) A.
B)B
C) Ø
D) μ​

Answer 1

Answer:

B)B

Step-by-step explanation:

Because A is a subset of B and totally inside the set B. So if you join them, then you get B only.

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Answer 2

Answer:

B)B

Step-by-step explanation:

A is proper subset of B. The B set contains all elements of the A set. and B set contains another elements including the A set elements. the question is the union of the both sets. so, In set theory, the union (denoted by ∪) of a collection of sets is the set of all elements in the collection.[1] It is one of the fundamental operations through which sets can be combined and related to each other. A nullary union refers to a union of zero ({\displaystyle 0}{\displaystyle 0}) sets and it is by definition equal to the empty set.

The union of two sets A and B is the set of elements which are in A, in B, or in both A and B.[2] In symbols,

For example:if A = {1, 3, 5, 7} and B = {1, 2, 4, 6, 7} then A ∪ B = {1, 2, 3, 4, 5, 6, 7}.

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