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(i) If A = {1,2,3,4,5}, B= {4,5,6,7,8}, C= {7,8,9,10,11} and D= {10,11,12,13,14}. 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 (viii) A∩(B∪C) (ix) (A∩B)∩(B∩C) (x) (A∪D)∩(B∪C)

Answer»

(i) If A = {1,2,3,4,5},

B= {4,5,6,7,8},

C= {7,8,9,10,11} and

D= {10,11,12,13,14}. 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 (viii) A∩(B∪C)

(ix) (A∩B)∩(B∩C)

(x) (A∪D)∩(B∪C)



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