Question

So sánh \(\sqrt{1}+\sqrt{2}+\sqrt{3}+\sqrt{4}+\sqrt{5}\) và 6

Answer 1

\(\sqrt{1}+\sqrt{2}+\sqrt{3}+\sqrt{4}+\sqrt{5}\)\(\approx8,382332347\)\(>6\)

Answer 2

Ta có:\(\sqrt{2}>1;\sqrt{3}>1;\sqrt{4}>1;\sqrt{5}>2\)

=>\(1+\sqrt{2}+\sqrt{3}+\sqrt{4}+\sqrt{5}>1+1+1+1+2=6\)

=>đpcm

Answer 3

Ta có: \(\sqrt{1}+\sqrt{2}+\sqrt{3}+\sqrt{4}+\sqrt{5}\) 

\(\sqrt{2}>1;\sqrt{3}>1;\sqrt{4}>1;\sqrt{5}>2\)

\(\Rightarrow1+\sqrt{2}+\sqrt{3}+\sqrt{4}+\sqrt{5}>1+1+1+1+2=6\)

\(\Rightarrowđpcm\)

Answer 4

vãi cả thằng bạn tự ra câu hỏi tự trả lời

Answer 5

các pạn giỏi ghê

Answer 6

Ta có:

\(\sqrt{1}=1;\sqrt{2}>1\)

\(\sqrt{3}>1;\sqrt{4}=2;\sqrt{5}>2\)

\(\Rightarrow\sqrt{1}+\sqrt{2}+\sqrt{3}+\sqrt{4}+\sqrt{5}\)

\(>1+1+1+2+2=7>6\)