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Find the cardinality of the following sets
1. Set A is the set of days in a week
2. set B is the set of letters in a Word "recognition"
3. Set C is the set of even numbers less than 2
4. set D is the set of odd numbers between 3 and 9
5. set E is the set of factors of 12
Answers & Comments
Answer:
1. Set A = {7}
2. Set B = {11}
3. Set C = {}
4. Set D = {5,7}
5. Set E = {1, 2, 3, 4, 6, 12}