Question

3) A = 1, 2,3. B = $2,3,4,5ļ then weite AUB = ? 0 ​

Answer 1

1,2,3,4,5 is the answer

Answer 2

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Step-by-step explanation:

U={1,2,3,4,5,6,7,8,9}

A={1,2,3,4}

B={2,4,6,8}

C={3,4,5,6}

(i) A′=U−A={5,6,7,8,9}

(ii) B′={1,3,5,7,9}

(iii) A∪C={1,2,3,4,5,6}

∴(A∪C)′={7,8,9}

(iv) A∪B={1,2,3,4,6,8}

(A∪B)′={5,7,9}

(v) We know (A′)′=A

⇒(A′)′={1,2,3,4}

(vi) B−C={2,8}

∴(B−C)′={1,3,4,5,6,7,9}