Question

please answer for this question please ​

Answer 1

Step-by-step explanation:

3)AUB={1,3,6,9}U{1,2,3,4,5,6}

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

A-B={1,3,6,9}-{1,2,3,4,5,6}

• ={9}

4)Given,

• to prove that:
• (A-B)U(B-A)=(AUB)-(AnB)
• take l.h.s left hand side
• =({2,3,4}-{3,4,5})U({3,4,5}-{2,3,4})
• ={2}U{5}
• {2,5}
• Now take r.h.s right hand side
• so..({2,3,4}U{3,4,5})-({2,3,4}n{3,4,5})
• ={2,3,4,5}-{3,4}
• ={{2,5}
• THEREFORE..,hence proved
• L.H.S=R.H.S

5)Given,

1. to prove that
2. A-(BUC)=(A-B)n(A-C)
3. so..take L.H.S
4. {1,3,5,7,9}-{1,2,3,4}
5. {5,7,9}
6. Take R.H.S
7. {5,7,9}n{1,5,7,9}
8. ={5,7,9}
9. therefore
10. hence proved
11. so L.H.S=R.H.S

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