Bissoy.com
Doctors Medicines MCQs Q&A

A = {a, b, c, d}, B = {d, f, g, h}. Find the cardinality of (A ∪ B)

A = {a, b, c, d}, B = {d, f, g, h}. Find the cardinality of (A ∪ B) Correct Answer 7

Concept:

The cardinality of a set is a measure of a set's size, meaning the number of elements in the set.

 

Calculation:

Here, A = {a, b, c, d}, B = {d, f, g, h}

⇒(A ∪ B) = {a, b, c, d, f, g, h}

Cardinality of (A ∪ B) = number of elements in (A ∪ B)

= 7

Hence, option (2) is correct.

Related Questions

If cardinality of (A U B) = cardinality of A+ cardinality of B. This means ____________
In an Entity-Relationship (ER) model, suppose ? is a many-to-one relationship from entity set E1 to entity set E2. Assume that E1 and E2 participate totally in ? and that the cardinality of E1 is greater than the cardinality of E2. Which one of the following is true about ??
Consider the "Supply" relationship relating the entities "Supplier" and "Product". Under default assumption. what will be the cardinality of the "Supply" relationship?
Let A = {x : x is a square of a natural number and x is less than 100} and B is a set of even natural numbers. What is the cardinality of A ∩ B ?
If A = {1, 3, 5, 7}, then what is the cardinality of the power set P(A)?
If A = {1, 2}, B = {2, 3) and C = {3, 4), then what is cardinality of  (A × B) ∩ (A × C)?
Maximum matching is also called as maximum cardinality matching.
If a column contains 7 values and 6 distinct values, the cardinality is __________
Consider a directed line(->) from the relationship set advisor to both entity sets instructor and student. This indicates _________ cardinality
Cardinality of the set of lower letter english alphabets is 26.