What are Combinations?
In combinatorics, Combinations refer to the different ways of selecting a subset of items from a larger set without regard to the order of selection. Combinations are used to count the number of possible outcomes when the order of selection does not matter. For example, if you have a set of three elements {A, B, C}, the Combinations of size 2 would be {AB, AC, BC}. In this case, the order of the items within each combination does not matter, so {AB} and {BA} are considered the same combination.
The number of Combinations of selecting "k" items from a set of "n" items is denoted as C(n, k). It is calculated using the binomial coefficient formula: C(n, k) = n! / (k! * (n - k)!)
Combinations have various applications in mathematics, probability theory, statistics, and other fields.
How to Calculate Number of Chords formed by joining N Points on Circle?
Number of Chords formed by joining N Points on Circle calculator uses Number of Chords = C(Value of N,2) to calculate the Number of Chords, Number of Chords formed by joining N Points on Circle formula is defined as the total count of possible line segments in a circle joining any two points from a given set of N points on the circle. Number of Chords is denoted by NChords symbol.
How to calculate Number of Chords formed by joining N Points on Circle using this online calculator? To use this online calculator for Number of Chords formed by joining N Points on Circle, enter Value of N (n) and hit the calculate button. Here is how the Number of Chords formed by joining N Points on Circle calculation can be explained with given input values -> 21 = C(8,2).