=sqrt(2+sqrt(6+sqrt(3+4sqrt(2))^2=sqrt(2+sqrt(9+4sqrt(2=sqrt(2+2sqrt(2)+1)=
=sqrt((1+sqrt(2))^2)=sqrt(2)+1
=sqrt(2+sqrt(6+sqrt(3+4sqrt(2))^2=sqrt(2+sqrt(9+4sqrt(2=sqrt(2+2sqrt(2)+1)=
=sqrt((1+sqrt(2))^2)=sqrt(2)+1