Các câu hỏi tương tự
Tìm x biết \(\frac{2}{40}+\frac{2}{88}+\frac{2}{154}+....+\frac{2}{x\left(x+3\right)}=\frac{202}{1540}\)
Tìm x biết:
\(\frac{2}{40}+\frac{2}{88}+\frac{2}{154}+...+\frac{2}{x\left(x+3\right)}=\frac{202}{1540}\)
Biết \(\frac{1}{40}+\frac{1}{88}+\frac{1}{154}+...+\frac{1}{x\left(x+5\right)}=\frac{101}{1540}\)
Tìm x
Biết \(\frac{1}{40}+\frac{1}{88}+\frac{1}{154}+...+\frac{1}{x\times\left(x+3\right)}=\frac{101}{1540}\) .Khi đó x=.............
Bài1 tìm x
a)\(\left(\frac{1}{40}+\frac{1}{88}+\frac{1}{154}+\frac{2}{28.17}+\frac{2}{17.40}\right).x=\frac{3}{5}\)
b) \(6:\left(\frac{0,6x+8}{20}+9\right)=0,6\)
x.\(\frac{1}{10}\)+\(\frac{1}{88}\)+\(\frac{1}{154}\)+...+\(\frac{1}{x.\left(x+3\right)}\)=\(\frac{101}{1540}\)
Tìm x biết:
\(\frac{1}{10}+\frac{1}{40}+\frac{1}{88}+...+\frac{3}{\left(x+2\right)x\left(3x+5\right)}=\frac{3}{20}\)
giải giúp tôi nhé!arigator
Tìm x, biết rằng:
a)\(\frac{1}{5.8}+\frac{1}{8.11}+\frac{1}{11.14}+...+\frac{1}{x\left(x+3\right)}=\frac{101}{1540}\)
b)\(1+\frac{1}{3}+\frac{1}{6}+\frac{1}{10}+...+\frac{1}{x\left(x+1\right):2}=1\frac{1991}{1993}\)
Tìm x biết
a) \(\frac{1}{5.8}+\frac{1}{8.11}+\frac{1}{11.14}+...+\frac{1}{x\left(x+3\right)}=\frac{101}{1540}\)
b) \(1+\frac{1}{3}+\frac{1}{6}+\frac{1}{10}+...+\frac{2}{x\left(x+1\right)}=1\frac{2017}{2019}\)