你可能感兴趣的试题
a+1=b+1 a+5=b-5 -a=-b a-b=0
cbac>ab cb>ab c+b>a+b
a•b>0 a+b<0 |a|<|b| a﹣b>0
={0,1},则下列式子错误的是( ) A.0∈A. {1}∈A. ∅⊆A. {0,1}⊆A.
cbac>ab cb>ab c+b>a+b
a+5>b+5 3a>3b; -5a>-5b >
2>0>-4>-1 -4>-1>2>0 -4<-1<0<2 0<2>-1<-4
-x>-y a2x>a2y -x+a<-y+a x>-y
b=atanA b=csinA a=ccosB c=asinA
a+1=b+1 a+5=b﹣5 ﹣a=﹣b a﹣b=0
a+3<b+3 a-3<b-3 3 a<3b -3 a<-3b
∣-5∣=-5 -∣-5∣= 5 -(-5)=- 5 -(-5)= 5
a+5>b+5 3a>3b; -5a>-5b >
a+5>b+5 3a>3b; -5a>-5b >