Question

So sánh 2 phân số sau:

\(\frac{20^{100}-1}{20^{101}-1}\)       và            \(\frac{20^{101}-1}{20^{102}-1}\)

Answer 1

\(\frac{20^{101}-1}{20^{102}-1}>\frac{20^{101}-20}{20^{102}-20}=\frac{20.\left(20^{100}-1\right)}{20.\left(20^{101}-1\right)}=\frac{20^{100}-1}{20^{101}-1}\)

\(\Rightarrow\frac{20^{101}-1}{20^{102}-1}>\frac{20^{100}-1}{20^{101}-1}\)

Answer 2

tui biết làm nhưng ko mún làm

Answer 3

VRCT_Ran love shinichi z cx ns

Answer 4

Cảm ơn sherlockichi Kazukosho. Thank you very much.