Friday
August 22, 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

college math 116 - Functions are a lot like equations. In a function we look at...
English Grammar part 2 - Re: this question: http://www.jiskha.com/display.cgi?id...
math - just an algebra question. how would you solve: (3x^2 +5)(3x^2 +5) ^ means...
Journal - You see I have this notebook and like I want to use it for to write ...
math - I have the upse question and want to know what the upse stands for. I ...
English - American Life, stereotypes? Just like television, commercial, etc. ...
Science - reproduction - Hey. Well ummm I have a very awkward question. You see...
algebra - I've seen the exclamation point (!) put after numbers (ex. 3!), but I ...
Advanced Algebra - In the definition of intercepts, it says THE y-intercept, but...
bartlett hill,math - add the like terms together.a+b+a+2b Okay. Well, the ...

Search
Members