1. a)adevarat
b)adevarat
c)adevarat
d)adevarat
e)fals
f)adevarat
g)fals
h)adevarat
i)fals
j)adevarat
k)adevarat
l)adevarat
2. a) D48 ={1,48,3,16,2,24, 6,8,12 ,4}
b) D50 ={1,50,2,25,5,10}
c) D75 ={ 1,75,3,25,5,15,...}
3. a)M7 < 100 = { 0,7,14,21,28,35,42,49,56,63,70,77,,84,91,98}
b) M11 <142 =
{0,11,22,33,44,55,66,77,88,99,110,121,132,}
