Răspunsuri

  • Utilizator Brainly
2014-10-05T11:34:53+03:00
50<xy<100
x=y+1
y=2p
, p∈{1,2,3,4}

Daca y=2p , p∈{1,2,3,4} ==>
==> y=2x1=2 ==>x=3  , xy=32
       y=2x2=
4 ==>x=5  , xy=54
       y=2x
3=6 ==>x=7  ,  xy=76
       y=2x4=8 ==>x=9  ,  xy=98

50<xy<100 ==> xy∈{54,76,98}









5 4 5
2014-10-05T11:39:01+03:00
50<xy<100
x=y+1
y=2p  p=1,2,3,4,
p=1  y=2  x=3  fals
p=2  y=4 x= 5    50<54<100
p=3  y=6 x=7  50<76<100
p=4  y=8 x=9  50<98<100
6 4 6