Question

Let a=(1, 2),b=(2,3,4)and c=(4, 5).find ax(bunionc)

Answer 1

Answer:

a={1,2}, b={2,3,4} c={4,5}

a-(b U c)

b U c={2,3,4} U {4,5}

={2,3,4,5}

a-(b U c) ={1,2} - {2,3,4,5}

={1}