![Ex 1.4, 4 - Chapter 1 Class 11 Sets - Part 2](https://d1avenlh0i1xmr.cloudfront.net/f997f838-3fea-4c1a-a5a1-6eac55e15f2b/slide12.jpg)
![Ex 1.4, 4 - Chapter 1 Class 11 Sets - Part 3](https://d1avenlh0i1xmr.cloudfront.net/e78a9b04-6ae7-47a5-99fe-b04fbc976ede/slide13.jpg)
![Ex 1.4, 4 - Chapter 1 Class 11 Sets - Part 4](https://d1avenlh0i1xmr.cloudfront.net/0fcf40bc-b474-4bf5-b550-1025bf4968e1/slide14.jpg)
![Ex 1.4, 4 - Chapter 1 Class 11 Sets - Part 5](https://d1avenlh0i1xmr.cloudfront.net/41fb94ec-cd13-4d06-908e-22e782c003a9/slide15.jpg)
Ex 1.4
Last updated at April 16, 2024 by Teachoo
Ex 1.4, 4 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 A ∪ B = {1, 2, 3, 4} ∪ {3, 4, 5, 6} = {1, 2, 3, 4, 5, 6} Ex 1.4, 4 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 A ∪ B = {1, 2, 3, 4} ∪ {3, 4, 5, 6} = {1, 2, 3, 4, 5, 6} ∪ Union - Combination of two sets Ex 1.4, 4 If A = {1, 2, 3, 4}, B = {3, 4, 5, 6}, C = {5, 6, 7, 8} and D = {7, 8, 9, 10}; find (ii) A ∪ C A ∪ C = {1, 2, 3, 4} ∪ {5, 6, 7, 8} = {1, 2, 3, 4, 5, 6, 7, 8} ∪ Union - Combination of two sets Ex 1.4, 4 If A = {1, 2, 3, 4}, B = {3, 4, 5, 6}, C = {5, 6, 7, 8} and D = {7, 8, 9, 10}; find (iii) B ∪ C B ∪ C = {3, 4, 5, 6} ∪ {5, 6, 7, 8} = {3, 4, 5, 6, 7, 8} ∪ Union - Combination of two sets Ex 1.4, 4 If A = {1, 2, 3, 4}, B = {3, 4, 5, 6}, C = {5, 6, 7, 8} and D = {7, 8, 9, 10}; find (iv) B ∪ D B ∪ D = {3, 4, 5, 6} ∪ {7, 8, 9, 10} = {3, 4, 5, 6, 7, 8, 9, 10} Ex 1.4, 4 If A = {1, 2, 3, 4}, B = {3, 4, 5, 6}, C = {5, 6, 7, 8} and D = {7, 8, 9, 10}; find (v) A ∪ B ∪ C A ∪ B ∪ C = {1, 2, 3, 4} ∪ {3, 4, 5, 6} ∪ {5, 6, 7, 8} = {1, 2, 3, 4, 5, 6, 7, 8} ∪ Union - Combination of two sets Ex 1.4, 4 If A = {1, 2, 3, 4}, B = {3, 4, 5, 6}, C = {5, 6, 7, 8} and D = {7, 8, 9, 10}; find (vi) A ∪ B ∪ D A ∪ B ∪ D = {1, 2, 3, 4} ∪ {3, 4, 5, 6} ∪ {7, 8, 9, 10} = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} ∪ Union - Combination of two sets Ex 1.4, 4 If A = {1, 2, 3, 4}, B = {3, 4, 5, 6}, C = {5, 6, 7, 8} and D = {7, 8, 9, 10}; find (vii) B ∪ C ∪ D B ∪ C ∪ D = {3, 4, 5, 6} ∪ {5, 6, 7, 8} ∪ {7, 8, 9, 10} = {3, 4, 5, 6, 7, 8, 9, 10} ∪ Union - Combination of two sets