October 2018 1 31 Report

Czy prawidlowo wykonane nierownosci graficzne?

x3≤x+4

W x3 do x wzialem -2,-1,0,1,2

W x+4 do x wzialem 1,2,3

Odp x∈(-∞;2]

-x3〉x+1

W x3 do x wzialem-2,-1,0,1,2

Wx+1 do x wzialem 1,2,3.

Odp x∈(-∞;0.5)

-x2<2

x∈ ∅


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