Question

A: x∈[-1; +∞) B: x∈(-∞; 3) Найти: A\B, B\A, A∪B, A⋂B

Answer 1

Ответ:

3трети проволны

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Answer 2

A: x ∈ [-1; +∞) B: x ∈ (-∞; +3)

A\B (A set difference B): This represents the elements that are in A but not in B. In this case, since A includes all values from -1 to positive infinity, and B only includes values from negative infinity to +3, the set difference A\B will include all values from +3 to positive infinity.

B\A (B set difference A): This represents the elements that are in B but not in A. In this case, since B includes all values from negative infinity to +3, and A includes all values from -1 to positive infinity, the set difference B\A will be an empty set, as there are no elements in B that are not also in A.

A∪B (A union B): This represents the elements that are in either A or B, or both. In this case, the union of A and B will include all values from -1 to +3, as well as all values greater than +3.

A⋂B (A intersection B): This represents the elements that are common to both A and B. In this case, the intersection of A and B will include all values from -1 to +3, as these are the values that are present in both A and B.