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Care dintre elementele multimii A={-3/2;1/3;1/6;0,5;1;0} verifica ecuatiile
a) 2x-1=8
b) 1/2x-1/2=2/3
c) -4/3x=0
d) 2x+4/3=7/3

Dau coroana si rapid va roooog!!!!!!!


Răspuns :

a) 2x=9...x=9/2∉A

b)x/2=3/6+4/6=7/6
x=7/3∉A

c)x=0∈A

d) 2x=3/3=1
     x=1/2=0,5∈A

intrebarea e formulata ambiguu, dar la c) si la d) soltiile apartin multimii A