Question

If A =(-3,5) and B=[-7,9] then
A) A=B
B)A C B
C)B C A
D) none of these

Answer 1

Answer:

c) B C A

Step-by-step explanation:

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Answer 2

Option C) B ⊂ A is the correct answer.

• A proper subset is denoted by ⊂ and is read as ‘is a proper subset of’.
• Set A is considered to be a proper subset of Set B if Set B contains at least one element that is not present in Set A.
• In the given question set A = {-2, -1, 0, 1, 2, 3, 4} and set B = {-7, -6, -5, -4, ... , 8, 9}
• There exist some elements (-7, -6, -5, -4, -3, 5, 6, 7, 8, 9)  in set B that are not present in set A.
• Therefore set B is a proper subset of set A.

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