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- bobbym
- 2012-12-05 12:16:57
Hi debjit625;
You are welcome.
- debjit625
- 2012-12-05 04:54:07
Thanks bobbym for the link http://www.themathpage.com/aprecalc/factorial.htm
as I was searching factorial problems involving variables and it had some great stuff.
- bobbym
- 2012-12-04 19:41:24
Hi;
Please check post #7, they get more and more difficult.
- debjit625
- 2012-12-04 19:39:49
I know about mathisfun ,I meant some advance stuff
Thanks again...
- bobbym
- 2012-12-04 19:35:38
- debjit625
- 2012-12-04 19:32:41
Now I got it thanks guys, it was so simple ,my book didnt have enough of factorials its more about permutation can you guys give me some resource on factorials...
Thanks
- bobbym
- 2012-12-04 19:21:31
Hi;
(n+2)! = (n+2)(n+1)n (n-1)(n-2)(n-3)...1
n! =n (n-1)(n-2)(n-3)...1
(n+2)! = (n+2)(n+1)n!
- debjit625
- 2012-12-04 19:19:42
Ok I have seen this in my book too but ,I didn't understood how
expands into ,is their any special rules or am I missing something very basic- bob bundy
- 2012-12-04 19:13:04
hi debjit625
So you just need to solve
Bob
- bobbym
- 2012-12-04 19:10:39
Hi;
n = 49.
Solve this:
(n+2)(n+1) = 2550
- debjit625
- 2012-12-04 19:07:27
I can't solve this one ...
Find n ,if
Thanks