Question

\(\sqrt{6-2\sqrt{5}}\)

rút gọn ạ !!!

Answer 1

\(=\sqrt{5-2\sqrt{5}+1}=\sqrt{\left(\sqrt{5}-1\right)^2}=\left|\sqrt{5}-1\right|=\sqrt{5}-1\)

Answer 2

\(=\sqrt{5-2\sqrt{5}+1}=\sqrt{\left(\sqrt{5}-1\right)^2}=\sqrt{5}-1\)

Answer 3

√5−1

Answer 4

\(\sqrt{6-2\sqrt{5}}\)

\(=\sqrt{5-2\sqrt{5+1}=\sqrt{\left(\sqrt{5}-1\right)^2}=\left|\sqrt{5}-1\right|=\sqrt{5}-1}\)

Học tốt !!!