Use graphs to find the set : [1, 3) ∪ (0, 4)

Find and graph each set:  (negative infinity, -4) U (4, infinity)

Let ai = [250] -10 and a2 = h [4] The set {a1, a2} will span R² unless h = (If there are no values of h that make the set fail to span, enter "NONE". If the set fails to span for all values of h enter "ALL".)

3. Let A = {1,2, 3} and B = {1,2, 3,4}. The relations R1 = {(1,1), (2,2), (3,3)} and R2 = {(1,1), (1,2), (1,3), (1,4)} can be combined using set operations. Find the following: a. R1 U R2 b. Rị n R2 c. R1 \ R2 d. R2 \ R1