Răspuns :
5x9=45
sa fie bine,sperrrrrrr
a= .___,___.___.___.___.
b= .____.___._____.___.___.___._____.___. axb=45
sa fie bine,sperrrrrrr
a= .___,___.___.___.___.
b= .____.___._____.___.___.___._____.___. axb=45