比较大小:-(-15)______-|-15|;-|-45|______-|-54|.-数学

题目简介

比较大小:-(-15)______-|-15|;-|-45|______-|-54|.-数学

题目详情

比较大小:-(-
1
5
)
______-|-
1
5
|;-|-
4
5
|______-|-
5
4
|.
题型:填空题难度:中档来源:不详

答案

∵-(-class="stub"1
5
)=class="stub"1
5
,-|-class="stub"1
5
|=-class="stub"1
5

∴-(-class="stub"1
5
)>-|-class="stub"1
5
|;
∵-|-class="stub"4
5
|=-class="stub"4
5
,-|-class="stub"5
4
|=-class="stub"5
4

而|-class="stub"4
5
|=class="stub"4
5
,|-class="stub"5
4
|=class="stub"5
4

∴-class="stub"4
5
>-class="stub"5
4

∴-|-class="stub"4
5
|>-|-class="stub"5
4
|.
故答案为>,>.

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