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设M=2a(a-2),N=(a+1)(a-3),则有( ) A.M>N B.M≥...
设M=2a(a-2),N=(a+1)(a-3),则有( )
A.M>N
B.M≥N
C.M<N
D.M≤N
考点分析:
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设a、b满足0<a<b<1,则下列不等式中正确的是( )
A.a
a<a
bB.b
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aD.b
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在a>0,b>0的条件下,三个结论:
①
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③
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其中正确的个数是( )
A.0
B.1
C.2
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B.S=
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C.S≤
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对于0<a<1,给出下列四个不等式:
①
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②
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③
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④
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