Wednesday
April 23, 2014

Homework Help: math

Posted by Anonymous on Thursday, August 2, 2007 at 3:47pm.

I know "!" means e.g. 5!=5x4x3x2x1 but how about [3(n+1)!]/[5n!]?

Can you see how n! = n(n-1)!?

or that (n+1)! = (n+1)n! ?
just like 8! = 8(7!)

then [3(n+1)!]/[5n!]
=3(n+1)n! / 5n!
=3(n+1)/5

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Exterior angle what am I doing wrong? - Find the measure of the indicated ...
Adding and Subtracting Rational Expressions - Iwouldhighly appreciate it if ...
math,help - Can someone show me how do i multiply the following fractions: (n^2-...
English Grammar part 2 - Re: this question: http://www.jiskha.com/display.cgi?id...
Journal - You see I have this notebook and like I want to use it for to write ...
math - JUSTIFIES A STEP IN THE SOLUTION OF AN EQUATION 4n+(7+n)=52 4n+(n+7)=52 (...
college math 116 - Functions are a lot like equations. In a function we look at...
MATH - Adding and Subtracting Rational Expressions there are two problems I get ...
Algebra - Simplify: (4m/5n^2)-(n/2m) A)(8m^2-5n^3)/10n^2m B)(8m^2+5n^3)/10n^2m C...
math - I have the upse question and want to know what the upse stands for. I ...

Search
Members