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2014-10-28T12:55:39+02:00
1+√3 + 3(1 + √2 - √3 ) - 2√2( 1 - √2 ) +√3(2 - 2√3 )=1+√3 + 3+3√2-3√3-2√2+4+2√3-6=2+√2