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Let ={1,2,3,4}a d n\ R={(a , b): a in A...

Let `={1,2,3,4}a d n\ R={(a , b): a in A , b in A ,\ a` divides `b}` . Write `R` explicity.

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MODERN PUBLICATION-RELATIONS AND FUNCTIONS-Exercise-2(a)
  1. If A = {a,b,c}, B= [p,q], " find " B xx A. (ii) Let A = [1,2,3,4,5,6...

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  2. Find x and y if: (i) (x + 1,y-2) = (3,1) (ii) (x + 2,4)= (5,2x+y)

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  3. Let ={1,2,3,4}a d n\ R={(a , b): a in A , b in A ,\ a divides b} . W...

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  4. Let A and B be two sets such that n(A) = 3 a n d n(B) = 2. If (x , 1),...

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  5. The Cartesian product A xxA has 9 elements among which are found (1...

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  6. If R is the set of all real numbers, what do the cartesian products R...

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  7. If A= [a,b,c], B= [c,d] and C= [d,e,f], Find (i) A xx (B uu C) (ii) ...

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  8. (a) Let A= {1,2,3}, B= [3,4] and C={4,5,6}. Find: (i) (A xx B) nn (A...

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  9. Let A= {(1)/(2), 2}, B= [2,3,5], C= {-1, -2}. Verify that A xx (B nn C...

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  10. Let A = {1,2,3}, B = {2,3,4} and C= {4,5). Verify that: A xx (B uu C...

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  11. If A = [1,2,3], B=[4], C= [5], then verify that: (i) A xx (B uu C) =...

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  12. Let A= [1,2,3], B = [-1,0,1,2,3], C= {1}, D= {-1,1}. Then verify the f...

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  13. Let P = {1,4,9} and Q={2,4,6}. Write the elements of (P nn Q) xx (P uu...

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  14. Theorem 3 (If A and B are two non empty set; then prove that AxxB=BxxA...

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  15. Let A be a non-empty set such that AxxB=AxxC . Show that B=C .

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  16. If A sube B and C sube D, then prove that: A xx C sube B xx D

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  17. (i) If A sube B, prove that A xx A sube (A xx B) nn (B xx A) (ii) If...

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  18. Theorem 1(i) (For any three set A;B;C; prove that Axx(BuuC)=(AxxB)uu(A...

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  19. For any three sets A, B and C, prove that: (A -B) xx C= (A xx C) - (...

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  20. For any A sets A, B, C and D, prove that: (AxxB) nn (CxxD)=(A nnC)xx...

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