A.x-5<-6 | B.
| C.3+2x>6 | D.2(1-x)>-7 |
1 |
2 |
A.a+3>b+5 | B.a-9>b-9 | C.-10a>-10b | D.ac2>bc2 |
A.a-m>b-m | B.-
| ||||
C.-a>-b | D.a(m2+1)>b(m2+1) |
A.
| B.丨a3丨>-a3 | C.-a>a2 | D.a3<-a2 |
a |
b |
c |
d |
a |
a+b |
c |
c+d |
c |
c+d |
a |
a+b |
d |
c+d |
b |
a+b |
b |
a+b |
d |
c+d |
A.①③ | B.①④ | C.②④ | D.②③ |
1 |
2 |
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