Algebra homework problem from image

[Mattofix]

Homework Statement

http://aycu28.webshots.com/image/46867/2005447430250683793_rs.jpg

Homework Equations

http://aycu28.webshots.com/image/46867/2005454169192462776_rs.jpg

The Attempt at a Solution

...?

 

[morphism]

If p is prime, can k!(p-k)! divide p if 1<=k<p?

 

[Ephratah7]

How did you attach those?

 

[Ephratah7]

...can i ask a question? what is "!" and "mod"??

 

[steelphantom]

...can i ask a question? what is "!" and "mod"??

! = http://en.wikipedia.org/wiki/Factorial"

mod = http://en.wikipedia.org/wiki/Modular_arithmetic"

 

[Ephratah7]

! = http://en.wikipedia.org/wiki/Factorial"

mod = http://en.wikipedia.org/wiki/Modular_arithmetic"

ahhh... i see.. thanks..