\(\sqrt[]{\frac{343434}{6766767}\hept{\begin{cases}9888\\0988\end{cases}}\hept{\begin{cases}6758\\67548\\9999\end{cases}}\orbr{\begin{cases}8889\\8888\end{cases}}}\)=????????????????????????????????????????
\(\hept{\begin{cases}\\\end{cases}}\)222+7
\(\frac{6}{5}-\hept{\begin{cases}5\\2\end{cases}}-\frac{7}{4}\)
Bán kính r = \(2\hept{\begin{cases}1\\2\end{cases}}\)
Chu vi bằng bao nhiêu
A+B=48
B+C=40\(\hept{\begin{cases}a=?\\b=?\\c=?\end{cases}}\)
A=\(\frac{2}{3}\)
\(\hept{\begin{cases}\\\end{cases}}\frac{1}{1x3}\)+\(\frac{1}{3x5}\) + \(\frac{1}{5x7}\)+ \(\frac{1}{7x9}\)+ \(\frac{1}{9x11}\)} x Y = \(\frac{2}{3}\)
Tìm Y
tinh nhanh
\(10101\cdot\orbr{\begin{cases}5\\10101\end{cases}}-\frac{5}{20202}+\frac{5}{30303}+\frac{5}{40404}\)
\(\orbr{\begin{cases}1\\25X26\end{cases}}+\frac{1}{26X27}+.......+\frac{1}{29x30}\)đóng ngoặc X 150 + 103 ; 1,03 x mở ngoặc x - 1 đóng ngoặc = 22