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}

∴