Posted by sh on Sunday, March 29, 2009 at 8:39pm.
Write the expression without using the factorial symbol.
(n+1)!/(n1)!
my work:
(n+1)!/((n+1)(n1)!)
=1/(n1)?
Thanks in advance.

math  Reiny, Sunday, March 29, 2009 at 9:05pm
close
(n+1)!/(n1)!
= (n+1)(n)(n1)!/((n+1)(n1)!
= n

math  sh, Sunday, March 29, 2009 at 9:23pm
hmm..the answer key says its n(n+1), maybe the answer key is wrong

math  sh, Sunday, March 29, 2009 at 9:26pm
wait, nevermind, I got it :)
thanks :P

math  Reiny, Sunday, March 29, 2009 at 9:28pm
You know what?
I looked at "my work" and assumed that was the starting question.
so here it goes once more
(n+1)!/(n1)!
= (n+1)(n)(n1)!/n1)!
= n(n+1)
sorry
I should be more careful when reading questions.
Answer This Question
Related Questions
 math  write each expression without using the factorial symbol. 1)(n3)!  ...
 factorial help!!!  i just need help with factorials I assume you know what a ...
 algebra  using exactly four 3's and any math symbol you like, try to write an ...
 Math help please  7. In the expression –7x – 5x2 + 5, what is the coefficient ...
 Math Help? Check my answers.  1. Name the coefficients in the polynomial. 4x^2...
 math  Evaluate the factorial expression 8!/6! Use the formula for nPr: How many...
 math  Thank you in advance. How do you write an equivalent expression using ...
 chemisrty  I have seen on the chemistry answers that a symbol is used please ...
 English (poetry)  Create a symbol and write a short essay on what the symbol ...
 Math (Trig Review)  Evaluate the expression without using a calculator (Make a ...
More Related Questions