my brain is having autist moment. can anyone help me out with these instructions:
Several intervals can be combined into one region using the "set union" operation, ∪, which is represented as "U" in WeBWorK. For example, [-2,0] U (8,inf) represents the points from −2 to 0 together with everything bigger than 8.
Write the set of points from −5 to 3 but excluding −2 and 3 as a union of intervals
[-5,-3]U[-1,2]U(4,inf)
>>7799271
that was wrong
>>7799279
no u