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If A={(x ,\ y): y=1/x ,\ 0!=x in R}a n ...

If `A={(x ,\ y): y=1/x ,\ 0!=x in R}a n d\ B={(x , y): y=-x ,\ x in R}` , then write `AnnBdot`

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Given,`A = {(x, y): y = (1 / x), 0 ≠ x in R}`
`A = {(1, 1), (2, 1 / 2), (3, 1 / 3), ….. (-1, -1), (-2, -1 / 2) ……}`
`B = {(x, y): y = -x, x in R}`
`B = {(1, -1), (2, -2), ….. (0, 0) …. (-1, 1) …….}`
...
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RD SHARMA-SETS-Solved Examples And Exercises
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  9. The number of all possible subsets of a set containing n elements ?

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  10. For any two sets A and B Ann(AuuB)= B b. A c. phi d. none of these

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  11. If A={1,3,5, B}a n d\ B={2,4} , then 4 in A b. {4}subA c. BsubA d. no...

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  14. For any tow sets A and B, (A-B)uu(B-A)= a.(A-B)uuA b. (B-A)uuB c. (...

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  15. Which of the following statement is false: a .A-B=A-(AnnB) b. A-B=A-(...

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  17. Let A={x : x in R ,\ x >4} and \ B={x in R : x<5} . Then AnnB= (a) ...

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  18. Let A and B be two sets such that n(A)=16 ,\ n(B)=14 , n(AuuB)=25. The...

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  19. In set builder method the null set is represented by {} b. phi c. {x :...

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  20. If A and B are two disjoint sets, then n(AuuB) is equal to n(A)+n(B) b...

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