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2014-10-22T21:42:17+03:00
Cel mai inteligent răspuns!
2014-10-22T21:49:36+03:00
A=(5/4+2√5/2+1)-(1/4+2√5/2+5)+4
=(5/4+√5+1)-(1/4+√5+5)+4=
=5/4+√5+1-1/4-√5-5+4=
=5/4-1/4+1-5+4=
=1+1-5+4=1
2 4 2