Question

Find the union, AUB, for of the following pair of sets. Enter "DNE" for the empty set.A = (-∞, - 5], B = [5, ∞)

Answer 1

Given

Two sets A = (-∞, - 5], B = [5, ∞)

Find

union, AUB

Step-by-step explanation

Union of two sets A and B is the set of all elements that are present in A or in B

so , here A = (-∞, - 5], B = [5, ∞)

then union of set A and B is given by

`A\cup B=(-\infty,-5]\cup[5,\infty)`

Final Answer

Therefore., the union of A and B is (-∞, - 5] U [5, ∞)