Question

[mai huynh van thanh]

Tinh gia tri bieu thuc:

1-1/2-1/4-1/8-1/16-1/32=

minh dang gap

nho ket ban voi minh nhe

Answer 1

[Hoàng Ninh]

\(1-\frac{1}{2}-\frac{1}{4}-\frac{1}{8}-\frac{1}{16}-\frac{1}{32}\)

=> 1 - \(\frac{1}{32}\)

= \(\frac{32}{32}-\frac{1}{32}\)

= \(\frac{31}{32}\)

Answer 2

[Kirigaya Kazuto]

=\(1-\frac{1}{2}-\frac{1}{4}-\frac{1}{8}-\frac{1}{16}-\frac{1}{32}\)

=\(1-\left(\frac{1.16}{2.16}\right)-\left(\frac{1.8}{4.8}\right)-\left(\frac{1.4}{8.4}\right)\left(\frac{1.2}{16.2}\right)-\frac{1}{32}\)

=\(1-\frac{16}{32}-\frac{8}{32}-\frac{4}{32}-\frac{2}{32}-\frac{1}{32}\)

=\(1-\frac{1}{32}\)

=\(\frac{31}{32}\)