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Aflati numarul a= [tex] (\frac{1}{2} - \sqrt{3}) ^{2}+ ( \frac{ \sqrt{3} }{2} +1) ^{2} + ( 1- \sqrt{5})(1+ \sqrt{5} )[/tex] este intreg. Help mee please!


Răspuns :

1/4-√3+3+3/4+√3+1+1-5
4/4+5-5
1+0=1