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in Sets, Relations and Functions by (26.2k points)
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If A = set of letters of the word ‘DELHI’ and B = the set of letters the word ‘DOLL’ find

(i)  A ∪ B

(ii)  A ∩ B

(iii)  A – B

1 Answer

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Best answer

Here, A = {D, E, H, I, L} and B = {D, L, O}

(i)  A ∪ B = {D, E, H, I, L} and B ⋃ {D, L, O} 

= {D, E, H, I, L, O}

(ii)  A ∩ B {D, E, H, I, L} ∩ B ⋃ {D, L, O} 

= {D, L}

(iii)  A – B = {D, E, H, I, L} − {D, L, O} 

= {E, H, I}

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