\(B=\sqrt{5}-\sqrt{3-\sqrt{29-12\sqrt{5}}}\)
\(=\sqrt{5}-\sqrt{3-\sqrt{\left(2\sqrt{5}-3\right)^2}}\)
\(=\sqrt{5}-\sqrt{3-2\sqrt{5}+3}=\sqrt{5}-\sqrt{6-2\sqrt{5}}\)
\(=\sqrt{5}-\sqrt{\left(\sqrt{5}-1\right)^2}=\sqrt{5}-\sqrt{5}+1=1\)
\(B=\sqrt{5}-\sqrt{3-\sqrt{29-12\sqrt{5}}}\)
\(=\sqrt{5}-\sqrt{3-\sqrt{\left(2\sqrt{5}-3\right)^2}}\)
\(=\sqrt{5}-\sqrt{3-2\sqrt{5}+3}=\sqrt{5}-\sqrt{6-2\sqrt{5}}\)
\(=\sqrt{5}-\sqrt{\left(\sqrt{5}-1\right)^2}=\sqrt{5}-\sqrt{5}+1=1\)
Rút gọn biểu thức
a) \(\left(3-\sqrt{15}\right)\sqrt{4+\sqrt{15}}\)
b) \(\sqrt{29-12\sqrt{5}}-\sqrt{24-8\sqrt{5}}\)
Rút gọn:
\(\sqrt{\sqrt{5-\sqrt{3-\sqrt{29-12\sqrt{5}}}}}\)
5. Rút gọn
a. A=\(\sqrt{\sqrt{5}-\sqrt{3-\sqrt{29-12\sqrt{5}}}}\)
Rút gọn \(\sqrt{5-\sqrt{3-\sqrt{29-12\sqrt{5}}}}\)
rút gọn biểu thức
\(A=\sqrt{5}-\sqrt{3-\sqrt{29-12\sqrt{5}}}\)
Rút gọn biểu thức sau:
B = \(\sqrt{5}-\sqrt{3-\sqrt{29-12\sqrt{5}}}\)
Rút gọn biểu thức:
\(\sqrt{5}-\sqrt{3-\sqrt{29-12\sqrt{5}}}\)
rút gọn
\(E=\frac{\sqrt{8}+3}{\sqrt{17-3\sqrt{32}}}+\frac{3+2\sqrt{5}}{\sqrt{29-12\sqrt{5}}}-\frac{1}{\sqrt{12+2\sqrt{35}}}\)
rút gon : \(\sqrt{\sqrt{5}-\sqrt{3-\sqrt{29-12\sqrt{5}}}}\)