Campeaniuliaid
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Determianti, in fiecare caz, numerele naturale x,stiind ca:
a)x+5<8
b)x+3<11,x<11-3
c)x-7<13
d)x-3<6
e)4+x≤10
f)2+x≤12
g)x+17>23
h)x+21≥43
i)4·x<24
j)3·x≤33
k)x÷2<7
l)x÷4≤2
m)x÷3<5
n)x÷6≤4
o)3·x+11<44
p)3+7·x≤52
q)5·x-23≥22
r)6·x-18≥72
s)[tex] 3^{x} [/tex]≤81
t)[tex] 10^{x} [/tex]<100000

Răspuns :

a)x=0,1,2
b)x=0,1,2,3,4,5,6,7
c)x=19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3
d)x=5,4,3
e)x=0,1,2,3,4,5,6
f)x=0,1,2,3,4,5,6,7,8,9,10
g)x= >7 (adica de la 7 pana la un infinit)
h)x= >22 (adica de la 22 pana la un infinit)
i)x=0,1,2,3,4,5
j)x=0,1,2,3,4,5,6,7,8,9,10,11
k)x=12,10,8,6,4,2,0
l)x=8,4,0
m)x=12,9,6,3
n)x=24,18,12,6
o)x=0,1,2,3,4,5,6,7,8,9,10
p)x=0,1,2,3,4,5,6,7
q)x= >9 (adica de la 9 pana la un infinit)
r)x= >15 (adica de la 15 pana la un infinit)
s)x=0,1,2,3
t)x=0,1,2,3,4

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