Question

A=\(\sqrt{0,1}+\sqrt{0,9}+\sqrt{6,4}+\sqrt{0.4}+\sqrt{44,1}\)

Answer 1

\(\sqrt{10}A=\sqrt{10}\left(\sqrt{0,1}+\sqrt{0,9}+\sqrt{6,4}+\sqrt{0,4}+\sqrt{44,1}\right)\)

\(=\sqrt{1}+\sqrt{9}+\sqrt{64}+\sqrt{4}+\sqrt{441}\)

\(=1+3+8+2+21=35\)

\(\Rightarrow A=\frac{35}{\sqrt{10}}\)