1.Rozwiąż równanie
odp:
||1/x|+2|=3
|1/x|+2=3
|1/x|=1
1/x=1|*x
x=1
1/x=-1 |*x
1=-x
x=-1
|1/x|+2=-3
|1/x|=-5 <-- brak rozwiązania
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||1/x|+2|=3
|1/x|+2=3
|1/x|=1
1/x=1|*x
x=1
1/x=-1 |*x
1=-x
x=-1
|1/x|+2=-3
|1/x|=-5 <-- brak rozwiązania