Question

Aflati multimile X si Y stiind ca sunt indeplinite simultan conditiile: a) XintersectatY={3,4} B) X\Y={1,2} c)XreunitY={1,2,3,4,5}

Answer 1

X inter. Y = { 3, 4 } si

X/Y = {1, 2 } si

X U Y = {1, 2, 3, 4, 5 } rezulta ca:

X = { 1,2, 3, 4 }

Y = { 3, 4, 5 }