Các câu hỏi tương tự
Tìm x
:\(\left(\frac{2011}{1.11}+\frac{2011}{2.12}+...+\frac{2011}{100.110}\right)=\frac{2012}{1.101}+\frac{2012}{2.102}+...+\frac{2012}{10.110}\)
tìm x biết ( \(\frac{1}{1.101}\)+ \(\frac{1}{2.102}\)+\(\frac{1}{3.103}\)+......+ \(\frac{1}{10.110}\)) .x =\(\frac{1}{1.11}\)+\(\frac{1}{2.12}\)+.......+\(\frac{1}{100.110}\)
(\(\frac{1}{1.101}+\frac{1}{2.102}+...+\frac{1}{10.100}\)).x=\(\frac{1}{1.12}+\frac{1}{2.12}+...+\frac{1}{100.110}\)
Tìm x biết (1/1.101+2/1.102+...+10/10.110).X=1/1.11+1/2.12+...+1/100.110
Tìm x bt :
\(\left(\frac{1}{1\cdot101}+\frac{1}{2.102}+....+\frac{1}{10\cdot110}\right)\cdot x=\frac{1}{1.11}+\frac{1}{2\cdot12}+...+\frac{1}{100\cdot110}\)
( 1 / 1.101 + 1 / 2.102 + 1 / 3.103 + ... + 1 / 10.110 ) . x = 1 / 1.11 + 1 / 2.12 + ... + 1 / 100 . 110
tìm x,y biết:
a)\(\left(2x-5\right)^{2000}+\left(3y+4\right)^{2002}\le0\)
b)\(x=6:\frac{1}{3}-0,8:\frac{1,5}{\frac{3}{2}.0,4.\frac{50}{1:\frac{1}{2}}}+\frac{1}{4}+\frac{1+\frac{1}{2}.\frac{1}{0,25}}{6-\frac{46}{1+2,2.10}}\)
c)\(y=77^{-1}.7^4.11^2.\left(1.11\right)^4.\left(7^2\right)^{-8}.\left(7^{-8}\right)^{-3}.\frac{1}{\left(-11\right)^{-3}}\)
Tìm x biết : \(\left(\frac{1}{3}\right)^x\left(\frac{1}{9}\right)^x\left(\frac{1}{27}\right)^x\left(\frac{1}{81}\right)^x\left(\frac{1}{243}\right)^x=\left(-\frac{1}{3}\right)^{30}\)
Tìm x biết: \(\left|x+\frac{1}{2}\right|+\left|x+\frac{1}{6}\right|+\left|x+\frac{1}{12}\right|+\left|x+\frac{1}{20}\right|+...+\left|x+\frac{1}{110}\right|=11x\) = 11x