![A=[\, 1;4)\; ;\; B=[\, 2;5\, ]\; ;\; C=(3;7\, ]](https://tex.z-dn.net/?f=A%3D%5B%5C%2C+1%3B4%29%5C%3B+%3B%5C%3B+B%3D%5B%5C%2C+2%3B5%5C%2C+%5D%5C%3B+%3B%5C%3B+C%3D%283%3B7%5C%2C+%5D "A=[\, 1;4)\; ;\; B=[\, 2;5\, ]\; ;\; C=(3;7\, ]")
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![(A\cap B)\cup C=[2\, ;7\, ]](https://tex.z-dn.net/?f=%28A%5Ccap+B%29%5Ccup+C%3D%5B2%5C%2C+%3B7%5C%2C+%5D "(A\cap B)\cup C=[2\, ;7\, ]")