1)
A= {1,2,3,4,5,6,8}
B= {neN; n²<4n}
wyznacz A n B, A u B, A/B, A-B.
2)
A= {xer; x>0,1}
B= {xen; x ≤3}
wyznacz A n B, A u B, A-B, A-B.
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