Question

How to write (2n)! in general form?

Answer 1

"general form"?

Answer 2

i'm guessing expaneded form?

Answer 3

yeap

Answer 4

2 [ n * (n-1) -------- 3, 2 1 ]

Answer 5

But I want to include n! here in the expanded form

Answer 6

\[(2n)!=2n(2n-1)(2n-2)...\times n!\]

Answer 7

http://www.wolframalpha.com/input/?i=(2n)!

Answer 8

Why is it satellite? Though I know that n!=n*(n-1)*........2*1

Answer 9

I want to know how?

Answer 10

What about [2(n+1)]! then

Answer 11

(2n)! isnt 2n!

(2n)! is (2n)(2n-1)(2n-2)...(n+1)(n)(n-1)...(2)(1)

Examples: n = 3
(2n)! = (2*3)! = 6! = 720
2*3! = 2*6 = 12
totally different.