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Aratati ca ...=3 As dori o rezolvare completa

Aratati Ca 3 As Dori O Rezolvare Completa class=

Răspuns :

(1+√2)²-2√2=3
1²+2×1×√2+(√2)²-2√2=3
1+2√2+2-2√2=3(+2√2 si -2√2 se reduc)
1+2=3
3=3