CHAPTER 1. NUMBER SETS

1.2 Sets of Numbers

=

k~íìê~ä=åìãÄÉêëW=k=

tÜçäÉ=åìãÄÉêëW=kM=

fåíÉÖÉêëW=w=

mçëáíáîÉ=áåíÉÖÉêëW=w=+

kÉÖ~íáîÉ=áåíÉÖÉêëW=w=−

o~íáçå~ä=åìãÄÉêëW=n=

oÉ~ä=åìãÄÉêëW=o==

`çãéäÉñ=åìãÄÉêëW=`==

=

=

26. k~íìê~ä=kìãÄÉêë
    `çìåíáåÖ=åìãÄÉêëWk={NIOIPIK}K=


27. tÜçäÉ=kìãÄÉêë
    `çìåíáåÖ=åìãÄÉêë=~åÇ=òÉêçW=kM={MINIOIPIK}K=

=

28. 
    

    fåíÉÖÉêë
    tÜçäÉ=åìãÄÉêë=~åÇ=íÜÉáê=çééçëáíÉë=~åÇ=òÉêçW=
    w+=k={}NIOIPIKI=
    w−={}KI−PI−OI−NI=
    w=w−∪{}M∪w+={KI−PI−OI−NIMINIOIPIK}K=

    
    


29. o~íáçå~ä=kìãÄÉêë
    oÉéÉ~íáåÖ=çê=íÉêãáå~íáåÖ=ÇÉÅáã~äëW==













= = ~åÇ ~∈w ~åÇ Ä∈w~åÇ Ä≠M

Ä

~

nK=ñöñ

=

30. 
    

    fêê~íáçå~ä=kìãÄÉêë
    kçåêÉéÉ~íáåÖ=~åÇ=åçåíÉêãáå~íáåÖ=ÇÉÅáã~äëK