Question

a={3,5,7,9,11},b={1,2,4,5,8},c={1,4,7,10}

Answer 1

AUB  = {1,2,3,4,5,7,8,9,11}A∩B  = {5}AUBUC = {1,2,3,4,5,7,8, 9,10,11}B∩C={1,4}C-A = {}

A={3,5,7,9,11},b={1,2,4,5,8},c={1,4,7,10}