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A∩B -> <-6,5)
(A∩B)/c -><-6,-1>, (2,5)
A/B ->{-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10}
2)
AUB->(-2, +nieskonczonosci)
A∩B-> <1,2,3,4,5)
A/B->(-2, 1)