February 2019 0 10 Report
DAJE NAJ!!!
zadanie 1. Rozwiąż równanie:
3 |x + 2| - (x + 2)( x^{2} - 1) = 0
zadanie 2. Rozwiąż nierówności:
a) 4 |x| - |x|³ ≤ 0
b) |x + 1|³ - 3 |x + 1|² ≥ 0
Odpowiedzi:
zadanie 1: x ∈ {-2 ; 2}
zadanie 2:
a) x ∈ (minus ∞ ; -2> ∪ {0} ∪ <2 ; plus ∞)
b) x ∈ (minus ∞ ; -4> ∪ {-1} ∪ <2 ; plus ∞)
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