Răspunsuri

2014-05-28T00:14:28+03:00
4/ (3-√5)  rationalizam cu 3+√5

4(3+√5)/9-5= 4(3+√5)/4= 3+√5

a=|√5-3| +3+√5

a=-√5+3 +3 +√5

a=3+3

a=6
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