Question

Determinati multimile A si B stiind ca sunt indeplinite simultan conditiile: A^B={a,d,e}, AUB={a,b,c,d,e,f,g}, B\A={f,g}​

Answer 1

A n B = {a,d,e}

AUB = {a,b,c,d,e,f,g}

B/A = {f,g}

Conform primei relatii, ambele multimi au elementele a,d,e

Conform celei de-a treia relatii, B are sigur elementele f,g

Conform celei de-a doua relatii, putem deduce ca c ar apartine oricaruia multime

Asadar

A = {a,c,d,e}

B = {a,d,e,f,g}