Question

Potrzebuje bardzo szybko!!! Prosze ​

Answer 1

A={a,b,c,d}   ,  B={c,d,e}  ,  C={a,c}

A ∪ B = {a,b,c,d}∪{c,d,e}={a,b,c,d,e}

A ∪ C = {a,b,c,d}∪{a,c}={a,b,c,d}

A ∩ C = {a,b,c,d}∩{a,c}={a,c}

B ∩ C = {c,d,e}∩{a,c}={c}

A \ B = {a,b,c,d}\{c,d,e}={a,b}

B \ C = {c,d,e}\{a,c}={d,e}

( B ∪ C ) ∩ A = ( {c,d,e} ∪ {a,c} ) ∩ {a,b,c,d} = {a,c,d,e} ∩ {a,b,c,d} = {a,c,d}

( B \ A ) ∪ C = ( {c,d,e} \ {a,b,c,d} ) ∪ {a,c} = {e} ∪ {a,c} = {a,c,e}

B \ ( A ∩ C ) = {c,d,e} \ ( {a,b,c,d} ∩ {a,c} ) = {c,d,e} \ ( {a,c} ) = {d,e}

B ∪ ( A \ C ) = {c,d,e} ∪ ( {a,b,c,d} \ {a,c} ) = {c,d,e} ∪ { b,d } = { b,c,d,e }