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Let A={1,2,3....,19,20}. Let R be the eq...

Let A={1,2,3....,19,20}. Let R be the equivalence relation on `AxxA` defined by (a,b) R(c,d) iff ad = bc .Find the equivalence classes of (1,3)and (4,1).

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PATHFINDER-RELATIONS , FUNCTIONS AND BINARY OPERATIONS-QUESTION BANK
  1. Let m be fixed positive integer. Tow integers a amd are said to be con...

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  2. Show that the number of equivalence relation on the set (1,2,3) contai...

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  3. Let A={1,2,3....,19,20}. Let R be the equivalence relation on AxxA def...

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  4. Let f : R rarrR be defined as {(2x,+1,xle4),(X,+,4x ge4):} Show that f...

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  5. Whether the following function are to : Rrarr R+ defined by ff(x)=sqrt...

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  6. Let A be a finite set. If f : ArarrA is onto show that f is one- one.

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  7. Let f:RrarrR be a function defined by f(x)=cos(2x+3). Show that this f...

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  8. Let f(x)=(ax)/(x-1),x ne-1.If 10f(x)=x, find the value of a.

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  9. Let f be function defined on [0,1] defined by:f(x)={(x, if, x ,in, q),...

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  10. Find the domain and range of the following function :sqrt((x-1)(3-x))

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  11. If f(x)=sqrt(8x),g(x)=x+2, then

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  12. Let A=[-1,1] and f:ArarrA be a function defined by f(x) =xabsx. Show ...

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  13. Show that the function f:NrarrN defined by f(x)=x^2+x+1inNis not inve...

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  14. Let y={n^2:ninN}subeN. consider f: NrarrY as f(n)=n2. Show that is inv...

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  15. Let f :R R-{3/5}rarrR-{2/5} be a function defined as f (x)= (2x)/(5x+3...

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  16. Let A= {a+sqrt5b:a,binZ}. Show that usual multiplication of numbers is...

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  17. Let be binary operation on the set R defined by a*b = a+b+ab, a, binR....

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  18. Number of binary opertions on the set {a,b} are

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  19. Let * be a binary operation on N defined by a*b=2^(5ab),a b inN.Discus...

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  20. Let A=N x N and *be a binary operation on A defined by (a,b)*(c,d) =(a...

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