Rozwiąż :
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(√√2-1 + √√2+1 ) ²
(√√2-1 + √√2+1 ) ² = (√1+√3)²=(√1)²+2√3+(√3)²=1+2√3+3=2√3+4
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(√√2-1 + √√2+1 ) ² = (√1+√3)²=(√1)²+2√3+(√3)²=1+2√3+3=2√3+4