Question

Given U = {22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32}, A = {22, 24, 26, 28, 30}, and B = {23, 24, 25, 28, 29}.

Find A′ B′. Do not skip to the answer. Show your work, finding A’, then B’ then find their union.

Answer 1

To find A', start with set U and erase everything that is found in A

A = {22, 24, 26, 28, 30}
A' = {23, 25, 27, 29, 31, 32}


Similarly, to find B', start with set U and erase everything in set B

B = {23, 24, 25, 28, 29}.
B' = {22, 26, 27, 30, 31, 32}


Now combine the two sets to get the union

A' U B' = {23, 25, 27, 29, 31, 32, 22, 26, 27, 30, 31, 32}


Now sort and remove duplicates

A' U B' = {22, 23, 25, 26, 27, 29, 30, 31, 32}

Answer 2

thank you i like the way you explain that to me, thanks again

Answer 3

you're welcome