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Demonstrati ca
Posted: Thu Mar 05, 2009 8:19 am
by BurnerD1
Demonstrati ca numaul \( 0,x(y) + 0,y(x) \) se poate scrie ca \( \frac{x+y}{9}, x,y \ne 0 \)
Posted: Thu Mar 05, 2009 2:04 pm
by DrAGos Calinescu
\( 0,x(y)+0,y(x)=\frac{10x+y-x}{90}+\frac{10y+x-y}{90}=\frac{10(x+y)}{90}=\frac{x+y}{9} \)[/tex]