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Pavalascuelena
a fost răspuns

1÷√9+√8 + √6 ÷√6+√3 +1÷√4+√3+1÷√3+√2 +1÷√2+1
"÷" e linie de fractie

Răspuns :

Mikkka
(√9-√8)/ (9-8) + √6(√6-√3)/(6-3) + (√4-√3)/ (4-3) + (√3-√2)/ (3-2) +
 +(√2-1)/(2-1)=
√9-√8 + (6-√18)/3 +√4-√3+√3-√2+√2-1=
3-2√2+(6-3√2)/3+2-1=
4-2√2 +(6-3√2)/3=
=(12-6√2+6-3√2)/3=
=(18-9√2)/3
= 9(2-√3)/3=
=3(2-√3)