\(\sqrt{13+\sqrt{29+\sqrt{49}}}+x=\sqrt[3]{1000}-\sqrt{23+\sqrt{5893+\sqrt{1296}}}\)
\(\sqrt{13+\sqrt{29+\sqrt{49}}}+x=\sqrt[3]{1000}-\sqrt{23+\sqrt{5893+\sqrt{1296}}}\)
\(\sqrt{9765+\sqrt{1296}}+\sqrt{15+\sqrt{95481}}+\sqrt{1271+\sqrt{625}}\)
Tính nhanh : \(\frac{1}{\sqrt{1}+\sqrt{2}}+\frac{1}{\sqrt[1]{2}+\sqrt[2]{3}}+\frac{1}{\sqrt{3}+\sqrt{4}}+\frac{1}{\sqrt[3]{4}+\sqrt[4]{5}}+...+\frac{1}{\sqrt{999}+\sqrt{1000}}+\frac{1}{\sqrt[999]{1000}+\sqrt[1000]{1001}}\)
1. So sánh
a) \(4+\sqrt{33}va\sqrt{29}+\sqrt{14}\)
b) \(\sqrt{23}+\sqrt{15}va\sqrt{91}\)
So sánh:
a)\(\sqrt{6}\)và2,(45)
b)\(\sqrt{13+17}\)và\(\sqrt{13}+\sqrt{17}\)
c)\(4-\sqrt{29}\)và\(\sqrt{15}-\sqrt{30}\)
so sánh
a) \(4+\sqrt{33}\) và \(\sqrt{29}+\sqrt{14}\)
b) \(\sqrt{26}-\sqrt{3}-\sqrt{2009}\) và -42
TÍnh giá trị biểu thức sau:
\(A=\frac{1}{2\sqrt{1}+1\sqrt{2}}+\frac{1}{3\sqrt{2}+2\sqrt{3}}+\frac{1}{4\sqrt{3}+3\sqrt{4}}+........+\frac{1}{1000\sqrt{999}+999\sqrt{1000}}\)
so sánh các số sau : \(a=\dfrac{35}{49};b=\sqrt{\dfrac{5^2}{7^2}};c=\dfrac{\sqrt{5^2}+\sqrt{35^2}}{\sqrt{7^2}+\sqrt{49^2}};d=\dfrac{\sqrt{5^2}-\sqrt{35^2}}{\sqrt{7^2}-\sqrt{49^2}}\)
