If A = {1, 2, 3, 4}, B = {3, 4, 5, 6}, C = {5, 6, 7, 8} and D = {7, 8, 9, 10}; find:

(i) A ∪ B


(ii) A ∪ C


(iii) B ∪ C


(iv) B ∪ D


(v) A ∪ B ∪ C


(vi) A ∪ B ∪ D


(vii) B ∪ C ∪ D

(i) It is given in the question that,


A = {1, 2, 3, 4}


And, B = {3, 4, 5, 6}


∴


(ii) It is given in the question that,


A = {1, 2, 3, 4}


And, C = {5, 6, 7, 8}


∴


(iii) It is given in the question that,


B = {3, 4, 5, 6}


And, C = {5, 6, 7, 8}


∴


(iv) It is given in the question that,


B = {3, 4, 5, 6}


And, D = {7, 8, 9, 10}


∴


(v) It is given in the question that,


A = {1, 2, 3, 4}


B = {3, 4, 5, 6}


And, C = {5, 6, 7, 8}


∴



(vi) It is given in the question that,


A = {1, 2, 3, 4}


B = {3, 4, 5, 6}


And, D = {7, 8, 9, 10}


∴



(vii) It is given in the question that,


B = {3, 4, 5, 6}


C = {5, 6, 7, 8}


And, D = {7, 8, 9, 10}


∴



7