Question

If a=(1)=(1,2,3,4)and b=(3,4,5,6,7)find (1)aub(2)anb(3)a-b(4)b-a

Answer 1

The answer is attached below

Answer 2

a={1,2,3,4}

b={3,4,5,6,7}

aub= (1,2,3,4)u(3,4,5,6,7)

aub = (1,2,3,4,5,6,7)

anb= {1,2,3,4}n {3,4,5,6,7}

anb= {1,3,4}

a-b ={1,2,3,4}-{3,4,5,6,7}

a-b = {1,2}

b-a = {3,4,5,6,7}-{1,2,3,4}

b-a = {5,6,7}

FOLLOW FOR MORE....