1) AUB A=(a, b, c, d, e) B=(d, e, f, g, h, i) =(a, b, c, d, e) U(d, e, f, g, h, i) ={a, b, c, d, e, f, g, h, i} Reply
1) AUB
A=(a, b, c, d, e)
B=(d, e, f, g, h, i)
=(a, b, c, d, e) U(d, e, f, g, h, i) ={a, b, c, d, e, f, g, h, i}