October 2022 1 50 Report
Dane są zbiory :
[tex]A=\{ ~~x\in N:~~\mid 3x-5\mid\ \textless \ 4\frac{1}{2} ~~ \}\\\\B=\{ ~~x\in R:~~x^{3} -2x^{2} -9x+18=0~~ \}\\\\C=\{~~x\in N-\{2\}:~~x^{2} -6x+5\leq 0~~\}\\\\D=\{~~x\in R :~~\mid x-2\mid =1~~\}[/tex]

Wykaż, że (A ∪ B ) ∩ C = D

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