Rút gọn:
\(C=\sqrt{8+2\sqrt{10+2\sqrt{5}}}\sqrt{8-2\sqrt{10+2\sqrt{5}}}\)
Rút gọn:
A= \(\sqrt{8+2\sqrt{10+2\sqrt{5}}}+\sqrt{8-2\sqrt{10+2\sqrt{5}}}\)
Rút gọn \(\sqrt{8+2\sqrt{10+2\sqrt{5}}}+\sqrt{8-2\sqrt{10-2\sqrt{5}}}\)
Rút gọn \(A=\sqrt{8+2\cdot\sqrt{10+2\cdot\sqrt{5}}}+\sqrt{8-2\cdot\sqrt{10-2\cdot\sqrt{5}}}\)
\(\text{Rút gọn bt: }A=\sqrt{8+2\sqrt{10+2\sqrt{5}}}+\sqrt{8-2\sqrt{10+2\sqrt{5}}}\)
5.Rút gọn:
B= \(\sqrt{6-2\sqrt{\sqrt{2}+\sqrt{12}+\sqrt{18-8\sqrt{2}}}}\)
6.Rút gọn:
A= \(\sqrt{4+\sqrt{10+2\sqrt{5}}}+\sqrt{4-\sqrt{10+2\sqrt{5}}}\)
Rút gọn
\(\sqrt{8+2\sqrt{10+2\sqrt{5}}}+\sqrt{8-2\sqrt{20+2\sqrt{5}}}\)
rút gọn \(\dfrac{1}{\sqrt{2}+1}\) - \(\dfrac{\sqrt{8}-\sqrt{10}}{2-\sqrt{5}}\)
Rút gọn biểu thức: B = \(\sqrt{5}\left(\sqrt{20}-\sqrt{8}\right)+2\sqrt{10}\)