kho đay lớp 7

K

kool_boy_98

Ta có: $(-17)^{14}=17^{14}$

Ta có
$31^{11} < 32^{11}$
Mà $32^{11}= (2^5)^{11} = 2^{55}$
$=> 31^{11} < 2^{55}$
Ta có
$17^{14}>16^{14}$
Mà $16^{14 }= (2^4)^{14} = 2^{64}$
$=> 17^{14} > 2^{64}$
Mặt khác $2^{64} > 2^{55}$
$=> 31^{11} < 17^{14}$
 
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