Answer
a) {000,001,1100,1101}
b) {000,0011,010,0111}
c) {00, 011, 110, 1111}
d) {000000, 000001, 000100,000101, 010000, 010001, 010100, 010101}
Work Step by Step
Let A={0,11} and B= {00,01}
Put A and B in the Given sets
sets will be
a) AB= {000,001,1100,1101}
b)BA= {000,0011,010,0111}
c)$A^2$= {00, 011, 110, 1111}
d)$B^3$= {000000, 000001, 000100,000101, 010000, 010001, 010100, 010101}