Page 1 of 1

Divizibilitate

Posted: Sat Jan 23, 2010 7:52 pm
by Mateescu Constantin
Demonstrati ca \( \(2^{2x}+2^{x+y}+2^{2y}\)!\ \vdots\ \(2^x!\)^{2^x+2^{y-1}}\ \cdot\ \(2^y!\)^{2^y+2^{x-1}}\ ,\ \forall\ x,y\in\mathbb{N}^{\ast} \) .