Question

so sánh: -1244/1234 và 4331/-4321

Answer 1

Ta có:

\(\dfrac{-1234}{1244}=-1+\dfrac{10}{1244}\)

\(\dfrac{-4321}{4331}=-1+\dfrac{10}{4331}\)

Vì \(\dfrac{10}{1244}>\dfrac{10}{4331}\)

\(\Rightarrow-1+\dfrac{10}{1244}>-1+\dfrac{10}{4331}\)

hay \(\dfrac{-1234}{1244}>\dfrac{-4321}{4331}\)

Answer 2

\(\dfrac{1234}{1244}< \dfrac{1234+3037}{1244+3037}=\dfrac{4331}{4321}\)

\(\Rightarrow\dfrac{1234}{1244}< \dfrac{4331}{4321}\)

\(\Rightarrow-\dfrac{1234}{1244}>-\dfrac{4331}{4321}\)

\(\Rightarrow\dfrac{-1234}{1244}>\dfrac{4331}{-4321}\)

Answer 3

Thành ko chép mạng nhé

Answer 4

Ta có:

−12341244=−1+1012441244−1234​=−1+124410​

−43214331=−1+1043314331−4321​=−1+433110​

Vì 101244>104331124410​>433110​

⇒−1+101244>−1+104331⇒−1+124410​>−1+433110​

hay −12341244>−432143311244−1234​>4331−4321​
 

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