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va rog ex 2 va riggg

Va Rog Ex 2 Va Riggg class=

Răspuns :

IxI = 4 => x1 = 4 ; x2 = -4
IxI = √5 => x1 = √5 ; x2 = -√5
Ix-1I =√2 =>   pt x≥1 => x - 1 = √2 => x = 1+√2
                      pt x< 1 => - x +1 = √2 => x = 1-√2