Question

Determinati multimile:a) A={X€Z/ 6
____€Z}
9 x+3
B)={x€Z/ ---------- €Z}
2x-1

va roog...dau coroanaaaa

Answer 1

9x+3∈D6(Multimea divizorilor lui 6)D6=(1,-1,2,-2,3,-3,6,-6)
9x+3=1⇒x=-2/9
9x+3=-1⇒x=-4/9
9x+3=2⇒x=-1/9
9x+3=-2⇒x=-5/9
9x+3=3⇒x=0/9=0
9x+3=-3⇒x=-6/9
9x+3=6⇒x=3/9
9x+3=-6⇒x=-9/9=-1
A=(-1;0)Pentru a doua multime nu ai scris corect datele..daca le corectezi revin pentru rezolvare.O zi frumoasa si spor la invatatura!