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Help with composites please!

  1. Mar 22, 2008 #1
    1. The problem statement, all variables and given/known data
    Find the composites for the relations defined.

    R1={(x,y) member of real numbers x real numbers: y=x}
    R2={(x,y) member of real numbers x real numbers: y=-5x+2}

    a) R1compositeR1
    b)R2compositeR2



    2. The attempt at a solution

    a) I was thinking that R1compositeR1={(x,y) member of real numbers x real numbers: x=y}=R1
    b) I'm not to sure how to do and thats the one I need help on.

    Can you please help me?

    Thank you!!
     
  2. jcsd
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