Problem 294
Use sets to verify the following answers:
a. 4 + 5 = 9
b. 0 + 6 = 6
c. 10 + 2 = 12
Solution
a. {11,12,13,14}+{15,16,17,18,19} = {11,12,13,14,15,16,17,18,19}
b. {}+{a,b,c,d,e,f} = {a,b,c,d,e,f}
c. {1,2,3,4,5,6,7,8,9,10}+{11,12} ={1,2,3,4,5,6,7,8,9,10,11,12}