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2-m=0
-m=-2
m=2
Dla m∈R/{2} jest rosnaca
2 - m > 0 ∨ 2 - m < 0
-m > -2 //:(-1) ∨ -m < -2 //:(-1)
m < 2 ∨ m > 2
odp. m ∈ (-∞,2) (2,+∞)