What is a Set?
Mathematically a Set is a well defined collection of objects. For example, "the collection of all people in a village" is a Set. But, "the collection of all rich people in a village" is not a Set, because the term 'rich' is not well defined and it is subjective. Hence it is not a Set in Mathematics. The Set theory - branch of Mathematics dealing with the study of Sets and their properties is a fundamental area of basic Mathematics. The Sets which has a finite number of elements are called Finite Sets. If a Set has infinitely many elements but countable, then it is called as Denumerable Set. And if the elements are uncountably many, then it is called an Uncountable Set.
How to Calculate Number of Elements in Union of Two Sets?
Number of Elements in Union of Two Sets calculator uses Number of Elements in Union of Two Sets = Number of Elements in Set A+Number of Elements in Set B-Number of Elements in Intersection of Two Sets to calculate the Number of Elements in Union of Two Sets, Number of Elements in Union of Two Sets formula is defined as the total count of elements present in at least one of the two given finite sets A and B. Number of Elements in Union of Two Sets is denoted by nA∪B symbol.
How to calculate Number of Elements in Union of Two Sets using this online calculator? To use this online calculator for Number of Elements in Union of Two Sets, enter Number of Elements in Set A (nA), Number of Elements in Set B (nB) & Number of Elements in Intersection of Two Sets (nA∩B) and hit the calculate button. Here is how the Number of Elements in Union of Two Sets calculation can be explained with given input values -> 20 = 10+15-5.