( x + 1/2 ) + ( x + 1/4 ) + ( x + 1/8 ) + ( x + 1/16 ) = 1
( x + x + x + x ) + ( 1/2 + 1/4 + 1/8 + 1/16 ) = 1
x * 4 + 15/16 = 1
x * 4 = 1 - 15/16
x * 4 = 1/16
x = 1/16 : 4
x = 1/16 x 1/4
x = 1/64
x+x+x+x+1/2+1/4+1/8+1/16 = 1
x.4 + 15/16 = 1
x.4 = 1 – 15/16 = 1/16
x = 1/16 : 4
x = 1/64
\(\left(x+\frac{1}{2}\right)+\left(x+\frac{1}{4}\right)+\left(x+\frac{1}{8}\right)+\left(x+\frac{1}{16}\right)=1\)
\(\Rightarrow x+x+x+x+\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+\frac{1}{16}\)
\(\Rightarrow x\times4+\frac{15}{16}=1\)
\(\Rightarrow x\times4=1-\frac{15}{16}\)
\(\Rightarrow x\times4=\frac{1}{16}\)
\(\Rightarrow x=\frac{1}{16}\div4\)
\(\Rightarrow x=\frac{1}{16}\times\frac{1}{4}\)
\(\Rightarrow x=\frac{1}{64}\)
Có gì sai sót mong bạn thông cảm
