Ответ:
n=0
Объяснение:
1) 2(0,6-1,2n)≥3n-(1,2-1,8n)
1,2-2,4n≥3n-1,2+1,8n
1,2-2,4n≥4,8n-1,2
1,2+1,2≥4,8n+2,4n
2,4≥7,2n
1≥3n
n≤1/3
2) (3n-7)/2<1+3n
3n-7<2(1+3n)
3n-7<2+6n
-7-2<6n-3n
3n>-9
n>-3
3) n>-3; n≤1/3⇒ -3<n≤1/3
-3<n≤1/3, n∈Z⇒max(n)=0
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Answers & Comments
Ответ:
n=0
Объяснение:
1) 2(0,6-1,2n)≥3n-(1,2-1,8n)
1,2-2,4n≥3n-1,2+1,8n
1,2-2,4n≥4,8n-1,2
1,2+1,2≥4,8n+2,4n
2,4≥7,2n
1≥3n
n≤1/3
2) (3n-7)/2<1+3n
3n-7<2(1+3n)
3n-7<2+6n
-7-2<6n-3n
3n>-9
n>-3
3) n>-3; n≤1/3⇒ -3<n≤1/3
-3<n≤1/3, n∈Z⇒max(n)=0