Question

\(\sqrt{19-8\sqrt{ }3}\)

rút gọn giúp mình

Answer 1

Answer 2

rút rút gọn

 

Answer 3

\(\sqrt{19-8\sqrt{3}}\)

\(= \sqrt{16-8\sqrt{3}+3}\)

\(=\sqrt{(4-\sqrt{3})^2}\)

\(=\)\(|4-\sqrt{3}|\)

\(=4-\sqrt{3}\)

Answer 4

sorry mik hiểu sai ý, mik gửi lại bạn nha

\(\sqrt{19-8\sqrt{3}}\)=\(\sqrt{16-2.4.\sqrt{3}+3}\)=\(\sqrt{4^2-2.4.\sqrt{3}+3}\)=\(\sqrt{\left(4-\sqrt{3}\right)^2}\)=\(\left|4-\sqrt{3}\right|\)=4-\(\sqrt{3}\)