Răspunsuri

2014-07-18T14:25:48+03:00
(2-√2)² +2√2(2-√2) +2 

4-4√2+2+4√2-4+2

⇒ 4 . 
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2014-07-18T14:49:14+03:00
(2-rad20la put 2+2rad2(2-rad2)+2
4-4rad2+2+4rad2-4+2
=>4










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