Question

THU GỌN BIỂU THỨC

Answer 1

\(\sqrt{3-\sqrt{29-12\sqrt{5}}}=\sqrt{3-\sqrt{\left(2\sqrt{5}-3\right)^2}}=\sqrt{3-2\sqrt{5}+3}=\sqrt{6-2\sqrt{5}}=\sqrt{\left(\sqrt{5}-1\right)^2}=\sqrt{5}-1\)

Answer 2

\(=\sqrt{3-\sqrt{\left(2\sqrt{5}-3\right)^2}}=\sqrt{3-2\sqrt{5}+3}=\sqrt{9-2\sqrt{5}}\)