The word has followed by a space and a number. The answer 27405 is displayed in the Number of combinations textbox. This is a combination and can be written as C43 or 4 C 3 or left beginarray20c43endarray right.
Flashcards Permutations and Combinations Quizlet.
Given a fix number sigma I know there exist binomsigmagamma-1gamma-1 many combinations of splitting sigma such that sigmasigma_1sigma_gamma holds. It is interesting to also note how this formula is nice and symmetrical. Consider the selection of a set of 4 different letters from the English alphabet. 8 items have a total of 40320 different combinations.