Question

so sánh

\(\sqrt{8}+\sqrt{5}và\sqrt{7}+\sqrt{6}\)

\(\sqrt{2015}+\sqrt{2017}và\sqrt{2016}\)

giúp mình với mấy pạn 

THANKS

Answer 1

binh phuong len

Answer 2

\(\left(\sqrt{8}+\sqrt{5}\right)^2=13+2\sqrt{40}\)

\(\left(\sqrt{7}+\sqrt{6}\right)^2=13+2\sqrt{42}\)

vi

\(2\sqrt{40}< 2\sqrt{42}\)

nen \(\sqrt{8}+\sqrt{5}< \sqrt{7}+\sqrt{6}\)