Question

if A={1,2,3,4}, B={3,4,5,6} and C={5,6,7,8} find AU(BnC)

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Answer 1

Step-by-step explanation:

BnC= {3,4,5,6} n {5,6,7,8}

={ 5,6}

A U (BnC)={1,2,3,4} U {5,6}

={1,2,3,4,5,6}

Answer 2

Answer:

{12445678}

Step-by-step explanation:

A U B ={1234} U {3456}={123456} name this new set X

Now X C U ={123456} U {5678}

={12345678}

As X is A U B..