SOLUTION: Find the value of the following: 6!11! _______ 4!9!

Algebra ->  Matrices-and-determiminant -> SOLUTION: Find the value of the following: 6!11! _______ 4!9!      Log On


   

Question 451556: Find the value of the following:
6!11!
_______
4!9!
Answer by pedjajov(51) About Me  (Show Source):
You can put this solution on YOUR website!
! is a symbol for Factoriel that is defined for positive integer n as a product of all integers that are less or equal to that n:

n! = n*(n-1)*(n-2)* ... * 2*1

4!= 4*3*2*1
6!= 6*5*4*3*2*1 = 6*5*4!
9!= 9*8*7*6*5*4*3*2*1
11!= 11*10*9*8*7*6*5*4*3*2*1 = 11*10*9!

+%286%21%2A11%21%29%2F%284%21%2A9%21%29
%286%2A5%2A4%21%2A11%2A10%2A9%21%29%2F%284%21%2A9%21%29 , reduce by 4! and 9!
6%2A5%2A11%2A10 = 3300

So the value is 3300.