Question

1/2+1/4+1/8+1/16+1/32+1/64+1/128

Answer 1

giúp mình với

Answer 2

=127/128

neu dung thi tck nha

Answer 3

=\(\frac{127}{128}\)

Answer 4

=127/128

Answer 5

Theo mình bằng......

\(\frac{127}{128}\)

Answer 6

=127/128

Answer 7

  1/2+1/4+1/8+1/16+1/32+1/64+1/128

=1/1x2+1/2x2+1/2x4+1/4x4+1/4x8+1/8x8+1/8x16

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

=1-1/16

=15/16

Answer 8

127/128