Question

A) A={1,2,3,4} B={3,4,5,6} C={3,4,7,8}
Find () AUB (ii) BUC
(ili) (AU BUC
(iv) AU(BUC)
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Answer 1

Answer:

AUB= 1 ,2,3,4,5,6 b). BUC= 3,4,5, 6,7,8, c) AUBUC = 1,2, 3, 4,5,6,7,8

Answer 2

Answer:

Step-by-step explanation:

Given that

$A=(1,2,3,4) \ B=(3,4,5,6) \ C=(3,4,7,8)\\\\\bf {(i) A\cup B= (1,2,3,4) \cup (3,4,5,6)= (1,2,3,4,5,6) } \\\\(ii) B \cup C = ( 3,4,5,6) \cup (3,4,,7,8)=(3,4,5,6,7,8) \\\\(iii) (A \cup \ B) \cup C=( 1,2,3,4,5,6) \cup (3,4,7,8) =( 1,2,3,4,5,6,7,8)\\\\also \ (iv) A \cup ( B \cup C) =(1,2,3,4,5,6,7,8)$