比较下列每对数的大小:
(1)与;
(2)-|-7|和-(-7)
(3)|-4|与-4;
(4)|-(-3)|与-|-3|;
(5)-与-;
(6)-与-.
网友回答
解:(1)∵=,=,>,∴>;
(2)∵-|-7|=-7,0,-(-7)=7>0,∴-|-7|<-(-7);
(3)∵|-4|=4>0,-4<0,∴|-4|>-4;
(4)∵|-(-3)|=3>0,-|-3|=-3<0,∴|-(-3)|>-|-3|;
(5)∵-<0,-<0,|-|=>|-|=,∴-<-;
(6)∵-=-<0,-=-<0,|-|<|-|,∴>.