\(\text{Ta có: }1-\frac{1}{2}-\frac{1}{4}-\frac{1}{8}-\frac{1}{16}\)
\(=1-\left(1-\frac{1}{2}\right)-\left(\frac{1}{2}-\frac{1}{4}\right)-\left(\frac{1}{4}-\frac{1}{8}\right)-\left(\frac{1}{8}-\frac{1}{16}\right)\)
\(=\left(1-1\right)+\left(\frac{1}{2}-\frac{1}{2}\right)+\left(\frac{1}{4}-\frac{1}{4}\right)+\left(\frac{1}{8}-\frac{1}{8}\right)+\frac{1}{16}\)
\(=\frac{1}{16}\)
1-1/2-1/4-1/8-1/16
=1- 15/16
=16/16-15/16
=16-15/16
=1/16
1-1/2-1/4-1/8-1/16 =1-8/16-4/16-2/16-1/16=1/16
cac phan so 1/2 ,1/4 ,1/8de bang mau so cua phan so 1/16 duoc lan luot la; 8/16,4/16va 2/16
1-(8/16-4/16-2/16)=1-2/16=8/16
=1/2
chuc ban hoc gioi
1-1/2-1/4-1/8-1/16
= 1- 8-4-2-1/16
= 1-1/16
= 15/16
