Question

if A={2,e,5,7,9,b} and B= {3,a,c,5,6,7}Find i)AUB ,ii) A intersection B iii)A-B iv)B-A

Answer 1

aub
{2,e,5,7,9,b}U{3,a,c,5,6,7}
so aub is {2,3,5,6,7,9,e,b,a,c}

a intersection b
{2,e,5,7,9,b} intersection {3,a,c,5,6,7}
so, a intersection b is {5}

a-b
{2,e,5,7,9,b} - {3,a,c,5,6,7}
so,a-b is {2,e,7,9,b}

b-a
{3,a,c,5,6,7} - {2,e,5,7,9,b}
so, b-a is {3,a,c,6,7}

hope it helped you. if u like it please mark me as brainliest.