Question

11. If A = {6, 7, 8, 9} and B = {8, 10, 12}, find A
B.

Answer 1

Answer:

Step-by-step explanation:

Given A ={6,7,8,9},

B={8,10,12}

i)A-B = {6,7,8,9}-{8,10,12}

= {6,7,9}

ii)B-A={8,10,12}-{6,7,8,9}

= {10,12}

iii) A∆B = (A-B)U(B-A)

= {6,7,9}U{10,12}

={6,7,9,10,12}

Therefore,.

A∆B = {6,7,9,10,12}