Question

So sánh 72^45-72^44 và 72^44-72^43

Answer 1

\(72^{45}-72^{44}\)và \(72^{44}-72^{43}\)

Ta có : \(72^{45}-72^{44}=72.72^{44}-72^{44}=72^{44}\left(72-1\right)=72^{44}.71.\)

\(\)\(72^{44}-72^{43}=72.72^{43}-72^{43}=72^{43}.\left(72-1\right)=72^{43}.71.\)

Vì \(72^{44}.71>72^{43}.71\Rightarrow72^{45}-72^{44}>72^{44}-72^{43}.\)

VẬY .....

Answer 2

  

72^45-72^44 = 72^44 (72-1)

 

 72^44-72^43 = 72^43 ( 72 -1 )

vì 72^44>72^43 => 72^44(72-1)>72^43(72-1)

Hay 72^45-72^44 > 72^44-72^43 

            

Answer 3

easy

Answer 4

72^45 - 72^44 và 72^44 - 72^43

72^45 - 72^44= 72.72^44 - 72^44 = 72^44.(72-1) = 72^44.71

72^44 - 72^43 = 72.72^43 - 72^43 = 72^43.(72-1)= 72^43.71

=> 72^44.71 > 72^43.71

=>... bạn tự làm nốt nhé

 

Answer 5

7 năm sau mới có ng trả lời =))))))))