\(\sqrt{8+\sqrt{8}+\sqrt{20}+\sqrt{40}}\)
\(=\sqrt{1+2+5+2\left(\sqrt{2}+\sqrt{5}+\sqrt{10}\right)}=\sqrt{\left(1+\sqrt{2}+\sqrt{5}\right)^2}\)
\(=1+\sqrt{2}+\sqrt{5}\)
\(\sqrt{8+\sqrt{8}+\sqrt{20}+\sqrt{40}}\)
\(=\sqrt{1+2+5+2\left(\sqrt{2}+\sqrt{5}+\sqrt{10}\right)}=\sqrt{\left(1+\sqrt{2}+\sqrt{5}\right)^2}\)
\(=1+\sqrt{2}+\sqrt{5}\)
rút gọn \(\sqrt{8+\sqrt{8}+\sqrt{20}+\sqrt{40}}\)
\(\sqrt{8+\sqrt{8}+\sqrt{20}+\sqrt{40}}\)
Rút gọn Bt
Rút gọn biểu thức :
\(A=\sqrt{8+\sqrt{8}+\sqrt{20}+\sqrt{40}.}\)
Rút gọn biểu thức sau
\(\sqrt{8+\sqrt{8}+\sqrt{20}+\sqrt{40}}\)
Rút gọn biểu thức sau
\(A=\sqrt{8+\sqrt{8}+\sqrt{20}+\sqrt{40}}\)
1. Rút gọn A= \(\sqrt{8+\sqrt{8}+\sqrt{20}+\sqrt{40}}\)
2. Tính : \(\sqrt{6+\sqrt{6+\sqrt{6+\sqrt{6+\sqrt{6+...}}}}}\)
Rút gọn biểu thức
\(2\sqrt{40\sqrt{12}}-2\sqrt{\sqrt{75}-3\sqrt{5\sqrt{48}}}\)
\(2\sqrt{5\sqrt{3}}-2\sqrt{8\sqrt{3}}-3\sqrt{20\sqrt{3}}\)
Help me plsssssss
Help me plssssssss
Rút gọn bt
\(a,A=\sqrt{8+\sqrt{8}+\sqrt{20}+\sqrt{40}}\)
\(b,B=\left(\frac{15}{\sqrt{6}+1}+\frac{4}{\sqrt{6}-2}-\frac{12}{3-\sqrt{6}}\right)\left(\sqrt{6}+11\right)\)
Rút gọn
\(2\sqrt{40\sqrt{12}}-2\sqrt{\sqrt{75}}-3\sqrt{5\sqrt{48}}\)
\(2\sqrt{8\sqrt{3}}-2\sqrt{5\sqrt{3}}-3\sqrt{20\sqrt{3}}\)