Respostas

2014-03-18T12:15:17-03:00
X pertencente aos naturais exceto 0
a) A=3+X
b) B=2X
c) C={1=Y,Y+Y=2Y, 2Y+2Y=4Y, 4Y+4Y=8Y, 8Y+8Y=16Y}
d) D=7X
1 5 1