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\(\frac{x}{2008}-\frac{1}{10}-\frac{1}{15}-\frac{1}{21}...\frac{1}{120}=\frac{5}{8}\)Tìm x
tìm x :
\(\frac{x}{2008}-\frac{1}{10}-\frac{1}{15}-\frac{1}{21}-....-\frac{1}{120}=\frac{5}{8}\)
tìm x
\(\frac{x}{2008}-\frac{1}{10}-\frac{1}{15}-\frac{1}{21}-...-\frac{1}{120}=\frac{5}{8}\)
TINH\(C=\frac{x}{2008}-\frac{1}{10}-\frac{1}{15}-\frac{1}{21}-...-\frac{1}{120}=\frac{5}{8}\)
\(\frac{x}{2008}-\frac{1}{10}-\frac{1}{15}-\frac{1}{21}-...-\frac{1}{120}=\frac{5}{8}\) Tìm x \(\in\) N
Tìm x:\(\frac{x}{2008}-\frac{1}{10}-\frac{1}{15}-...-\frac{1}{120}=\frac{5}{8}\)
a) Tìm x biết: frac{x}{2008}-frac{1}{10}-frac{1}{15}-frac{1}{21}-...-frac{1}{120}frac{5}{8} b) Tìm a,b varepsilon Z biết : frac{a}{9}-frac{3}{b}frac{1}{18} c) Cho A frac{1}{1.2}+frac{1}{2.3}+frac{1}{3.4}+...+frac{1}{99.100} B frac{1}{1^2}+frac{1}{2^2}+frac{1}{3^2}+..+frac{1}{99^2}
Đọc tiếp
a) Tìm x biết: \(\frac{x}{2008}-\frac{1}{10}-\frac{1}{15}-\frac{1}{21}-...-\frac{1}{120}=\frac{5}{8}\)
b) Tìm a,b \(\varepsilon\) Z biết : \(\frac{a}{9}-\frac{3}{b}=\frac{1}{18}\)
c) Cho A =\(\frac{1}{1.2}+\frac{1}{2.3}+\frac{1}{3.4}+...+\frac{1}{99.100}\)
B =\(\frac{1}{1^2}+\frac{1}{2^2}+\frac{1}{3^2}+..+\frac{1}{99^2}\)
tìm xa) frac{x-1}{2}+frac{x-2}{5}frac{1}{4}+frac{x-7}{10}b) 3-frac{2}{2x-3}frac{2}{5}+frac{1}{2x-3}-frac{3}{2}c)7cdotleft(x-1right)+2xcdotleft(1-xright)0d) frac{x+1}{2008}+frac{x+2}{2017}+frac{x+3}{2016}frac{x+10}{2009}+frac{x+11}{2008}+frac{x+12}{2007}e) frac{2}{left(x-1right)cdotleft(x-3right)}+frac{5}{left(x-3right)cdotleft(x-8right)}+frac{12}{left(x-8right)cdotleft(x-20right)}-frac{1}{x-20}frac{-3}{4}
Đọc tiếp
tìm x
a) \(\frac{x-1}{2}+\frac{x-2}{5}=\frac{1}{4}+\frac{x-7}{10}\)
b) \(3-\frac{2}{2x-3}=\frac{2}{5}+\frac{1}{2x-3}-\frac{3}{2}\)
c)\(7\cdot\left(x-1\right)+2x\cdot\left(1-x\right)=0\)
d) \(\frac{x+1}{2008}+\frac{x+2}{2017}+\frac{x+3}{2016}=\frac{x+10}{2009}+\frac{x+11}{2008}+\frac{x+12}{2007}\)
e) \(\frac{2}{\left(x-1\right)\cdot\left(x-3\right)}+\frac{5}{\left(x-3\right)\cdot\left(x-8\right)}+\frac{12}{\left(x-8\right)\cdot\left(x-20\right)}-\frac{1}{x-20}=\frac{-3}{4}\)
Bài 1: Tìm x thuộc Z biết :
a) \(\frac{-8}{15}< \frac{x}{45}< \frac{-2}{5}\)
b) x= \(\frac{-4}{3}+\frac{-7}{5}\)
c) \(\frac{13}{4}+\frac{9}{10}=\frac{83}{x}\) d) x= \(\frac{10}{8}+\frac{-24}{48}+\frac{105}{-120}\) e) \(|x-\frac{1}{2}|=|\frac{-2}{7}|+\frac{5}{4}\)