1 - x= \(\frac{1}{2}\)
x= 1 -\(\frac{1}{2}\)
x= \(\frac{1}{2}\)
tk nhé
\(1-x=\frac{1}{2}\)
\(x=1-\frac{1}{2}\)
\(x=\frac{1}{2}\) ai nhanh mik tích cho
Tìm x
(\(\left(1+\frac{1}{2}\right)x\left(1+\frac{1}{3}\right)x\left(1+\frac{1}{4}\right)x...x\left(1+\frac{1}{x}\right)=1008\frac{1}{2}\)
tìm x
\(\left(1-\frac{1}{2}\right)x\left(1-\frac{1}{3}\right)x\left(1-\frac{1}{4}\right)x.......x\left(1-\frac{1}{10}\right)=\frac{x}{2010}\)
1.Tìm x
a.1+2+3+4+....+x=1275
b.\(\frac{1}{3}+\frac{1}{15}+\frac{1}{35}+....+\frac{1}{x\cdot\left(x+2\right)}\)
Câu 1: Tìm tổng C:
C = ( a + 2 x b ) + ( b + 2 x c ) + ( c + 2 x a )
với a + b + c = 15.
Câu 2: Tìm tổng D:
D = \(\frac{1}{3}+\frac{1}{15}+\frac{1}{35}+\frac{1}{63}+\frac{1}{99}+\frac{1}{143}\)
tìm x , biết:
\(x+1\frac{1}{2}=\frac{3}{2}+\frac{1}{2}\)
Tìm X : \(1+\frac{2}{6}+\frac{2}{12}+\frac{2}{20}+...+\frac{2}{x.\left(x+1\right)}=1\frac{2009}{2011}\)
Tìm x,y biết:
x+1=\(\frac{y-1}{3}\)=\(\frac{x-1}{2}\)
Tìm x, biết:
\(\frac{1}{3}+\frac{1}{6}+\frac{1}{10}+...+\frac{2}{x.\left(x+1\right)}=\frac{2011}{2013}\)
tìm x
\(\frac{1}{3}+\frac{1}{6}+\frac{1}{10}+.....+\frac{2}{x\cdot\left(x+1\right)}=\frac{2011}{2013}\)
\(\left(x+\frac{1}{2}\right)+\left(x+\frac{1}{4}\right)+\left(x+\frac{1}{8}\right)+\left(x+\frac{1}{16}\right)=1\)\(1\). Tìm x