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Let R1 and R2 be two relations defined o...

Let `R_1 and R_2` be two relations defined on a non-empty set A. Which of the following statements is false? Give reason in support of your answer.
If `R_1` and `R_2` are reflexive, then so is `R_! Nn R_2`.

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PRADEEP PUBLICATION-RELATIONS AND FUNCTIONS-EXERCISE
  1. Let R and S be two non-void relations on a set A. Which of the followi...

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  2. Let R and S be two non-void relations on a set A. Which of the followi...

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  3. Let R1 and R2 be two relations defined on a non-empty set A. Which of ...

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  4. Let X = {1, 2, 3, 4, 5, 6, 7, 8, 9}. Let R1 be a relation in X given ...

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  5. Let A = {1,2,3}. Then show that the nmber of relations (1,2) and (2,3)...

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  6. Which of the following relations are functions form A = (1,3,5,7,9) to...

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  7. Which of the following are the functions of RNA?

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  8. Which of the following functions are odd or even or neither : f(x)=|...

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  9. Which of the following are the functions of RNA?

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  10. Which of the following functions are not derivable at x=0?

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  11. Correct the following statement , "Every function is a relation is a r...

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  12. Give an example of a function which is one-one but not onto

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  13. Give an example of a function which is one-one but not onto

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  14. Give an example of a function which is one-one but not onto

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  15. If X = {a,b,c,d} and Y = {f,b,d,g}, find X-Y and Y-X.

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  16. Let x = (a,b,c) and Y = (0,1,2,3,4,5), define a one-one function from ...

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  17. Prove that the function f:N rarrN defined by f(x)=x^2 +x+ 1 is one -on...

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  18. Let f, X rarr Y be defined by f(x) = x^2 +1, for all x in X where X =...

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  19. Which of the following functions are one-one? f(x) = 3x + 2

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  20. Which of the following functions are one-one? f(x) = 2x^2 + 3

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