Question

Rut gon :\(\sqrt{3-\sqrt{2}}-\sqrt{3+\sqrt{2}}\)

Answer 1

\(\sqrt{3-\sqrt{2}}-\sqrt{3+\sqrt{2}}\)

\(=\sqrt{\left(\sqrt{2}-1\right)^2}-\sqrt{\left(\sqrt{2}+1\right)^2}\)

\(=\sqrt{2}-1-\sqrt{2}-1\)

\(=-2\)

Answer 2

Sửa đề: \(A=\sqrt{3-2\sqrt{2}}-\sqrt{3+2\sqrt{2}}\)

\(=\sqrt{2}-1-\sqrt{2}-1\)

=-2