Practice problem
How many elements are in the union of the two following sets? A={−3,−2.2,−1,0,1,4,5,7}A=\{-3, -2.2, -1, 0, 1, 4, 5, 7\}A={−3,−2.2,−1,0,1,4,5,7} B={−4,−3.2,−3,0,1,2,3,4,5}B=\{-4, -3.2, -3, 0, 1,2,3,4,5\}B={−4,−3.2,−3,0,1,2,3,4,5}
171717
121212
111111
555
Type a concept, like “slope” or “photosynthesis”.
