dane sa zbiory A=(1,5) B=<4,7> C=<5,7) wyznacz zbior D jezeli
a) D= A ∪ B ∩ C
b) D= A ∪( B ∩C)
a)
b)
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a)![D=(1,5)\cup<4,7>\cap<5,7)=(1,7>\cap <5,7)=<5,7) D=(1,5)\cup<4,7>\cap<5,7)=(1,7>\cap <5,7)=<5,7)](https://tex.z-dn.net/?f=D%3D%281%2C5%29%5Ccup%3C4%2C7%3E%5Ccap%3C5%2C7%29%3D%281%2C7%3E%5Ccap+%3C5%2C7%29%3D%3C5%2C7%29)
b)![B\cap C=<5,7)\\D=(1,5)\cup <5,7)=(1,7) B\cap C=<5,7)\\D=(1,5)\cup <5,7)=(1,7)](https://tex.z-dn.net/?f=B%5Ccap+C%3D%3C5%2C7%29%5C%5CD%3D%281%2C5%29%5Ccup+%3C5%2C7%29%3D%281%2C7%29)