Пошаговое объяснение:
А= {21 22 23 24 34 45}
B ={21 41 45}
C ={21 22 41 55}
а) А∩В={21, 45}
б) (A∩C)∪B = A∩C={21, 22}∪B={21, 22, 41, 55}
в) (A∪B)∩C = (A∪B)={21, 22, 23, 24, 34, 41, 45}∩C ={21, 22, 41}
г) (B∪C)∩A= (B∪C)={21, 22, 41, 45, 55}∩A={21, 22, 45}
Пошаговое объяснение:
А= {21 22 23 24 34 45}
B ={21 41 45}
C ={21 22 41 55}
а) А∩В={21, 45}
б) (A∩C)∪B = A∩C={21, 22}∪B={21, 22, 41, 55}
в) (A∪B)∩C = (A∪B)={21, 22, 23, 24, 34, 41, 45}∩C ={21, 22, 41}
г) (B∪C)∩A= (B∪C)={21, 22, 41, 45, 55}∩A={21, 22, 45}