x= \(2\frac{1}{2}\) - \(1\frac{1}{2}\)
x= 1
tk nhé
\(2\frac{1}{2}-x=1\frac{1}{2}\)
\(x=2\frac{1}{2}-1\frac{1}{2}\)
\(x=1\)
ai nhanh mik tích cho
\(2\frac{1}{2}\)- x = \(1\frac{1}{2}\)
x = \(2\frac{1}{2}\)- \(1\frac{1}{2}\)
= 1
x= \(2\frac{1}{2}\) - \(1\frac{1}{2}\)
x= 1
tk nhé
\(2\frac{1}{2}-x=1\frac{1}{2}\)
\(x=2\frac{1}{2}-1\frac{1}{2}\)
\(x=1\)
ai nhanh mik tích cho
\(2\frac{1}{2}\)- x = \(1\frac{1}{2}\)
x = \(2\frac{1}{2}\)- \(1\frac{1}{2}\)
= 1
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 : \(1+\frac{2}{6}+\frac{2}{12}+\frac{2}{20}+...+\frac{2}{x.\left(x+1\right)}=1\frac{2009}{2011}\)
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;
(\(\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+\frac{1}{16}\)) : x = (\(\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+\frac{1}{20}+.......+\frac{1}{132}\))
tìm x biết: \(\frac{\left(\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+\frac{1}{16}\right)}{x}=\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+\frac{1}{20}+...+\frac{1}{132}\)
1.Tìm x
a.1+2+3+4+....+x=1275
b.\(\frac{1}{3}+\frac{1}{15}+\frac{1}{35}+....+\frac{1}{x\cdot\left(x+2\right)}\)
Tìm x:\(\left(x-\frac{1}{2}\right)\times\frac{5}{2}+\frac{1}{2}=\frac{7}{4}\)
1 . Tìm \(x\)
\(\left(\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+\frac{1}{16}\right)\div x=\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+...+\frac{1}{132}\)