Question

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) \(B ∪ C ∪ D\)

Answer 1

A = {1, 2, 3, 4], B = {3, 4, 5, 6}, C = {5, 6, 7, 8} and D = {7, 8, 9, 10}

(i) \(A ∪ B\) = {1, 2, 3, 4, 5, 6}

---

(ii) \(A ∪ C\) = {1, 2, 3, 4, 5, 6, 7, 8}

---

(iii) \(B ∪ C \)= {3, 4, 5, 6, 7, 8}

---

(iv) \(B∪ D \)= {3, 4, 5, 6, 7, 8, 9, 10}

---

(v) \(A ∪ B ∪ C\) = {1, 2, 3, 4, 5, 6, 7, 8}

---

(vi) A ∪ B ∪ D = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

---

(vii) B ∪ C ∪ D = {3, 4, 5, 6, 7, 8, 9, 10}