g = {
( 0, - 1 ) , ( 1, 0 )
, ( 2, 1 ) , (3,
2 ) , ( 4, 3 )
}
h = {
( - 3, 0 ) , ( - 2, 0 )
, ( - 1, 0 ) , ( 1, 1 )
, ( 2, 1 ) , ( 3,
1 ) ,
( 0, 0 ) }
จงหา ( ถ้ามี
)
5.1 D f | g = { 1, 2 , 3 , 4
}
5.2 D gof =
{ 1 , 2 , 3 , 4 }
5.3
gof = { (1,1) , (2,2) , (3,3) , (4,3) }
5.4
D f | h = { 1 , 2 }
5.5
D hof = { 1 , 2 }
5.6
hof =
{ (1,1) , (2,1) }
5.7
fog = { (2,2) , (3,3) , (4,4) }
5.8
goh = { (-3,-1) , (-2,-1) , (-1,-1) , (1,0) ,
(2,0) , (3,0) ,(0,-1) }
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