👉 In mathematics, a binomial is an algebraic expression consisting of two terms. These are known as the "binomial coefficients" and can be defined in various ways. For example: - The binomial coefficient 2C1 = 2 (read "two choose one") is used to specify that there are two ways to arrange two items, which is the number of ways to select an item from a set. - The binomial coefficient 3C2 = 6 (read "