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g(x)=3^{x+1}+1
g(2)=3³+1=27+1=28
Odp. A
16.
x/3-x≤2x-1
-2/3x-2x≤-1
-8/3x ≤ -1 /:(-8/3)
x≥3/8
Odp. C x=1∈C