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已知0<a<1,b>1,ab>1,则下列不等式正确的是().
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设a>b>0c为常数给出下列不等式①a-b>0②ac>bc③④b2>ab其中正确的不等式有
1个
2个
3个
4个
已知a
a>ab>ab
2
ab
2
>ab>a
ab>a>ab
2
ab>ab
2
>a
已知fx=-3x2+a6-ax+B.1解关于a的不等式f1>02当不等式fx>0的解集为-13时求实
已知不等式|x-2|>1的解集与不等式x2+ax+b>0的解集相同则a+b的值为________.
已知0<a<1b>1ab>1则下列不等式正确的是.
A
B
C
D
已知关于x的不等式0时解该不等式.
.已知不等式ax2-3x+2>0的解集为{x|xb}.1求ab2解不等式>0c为常数.
选修4-5不等式选讲已知不等式1若求不等式的解集若已知不等式的解集不是空集求a的取值范围
从下列不等式中选择一个与x+1≥2组成不等式组若要使该不等式组的解集为x≥1则可以选择的不等式是
x>0
x>2
x<0
x<2
已知fx=x2-a+x+1.1当a=时解不等式fx≤0;2若a>0解关于x的不等式fx≤0.
若有下面四个不等式1;2a
0
1
2
3
若则下列不等式①a+b>ab;②|a|>|b|③a
1个
2个
3个
4个
对于不等式组下列说法正确的是
此不等式组的正整数解为1,2,3
此不等式组的解集为﹣1<x≤
此不等式组有5个整数解
此不等式组无解
若a
a>ab>ab
2
ab
2
>ab>a
ab>a>ab
2
ab>ab
2
>a
已知关于x的不等式1当a=1时求该不等式的解集2当a>0时求该不等式的解集.
已知经过计算和验证有下列正确的不等式根据以上不等式的规律请写出对正实数成立的条件不等式.
已知
0
1
2
3
已知不等式x2+px+q
(1, 3)
(-∞, -1)∪(1, 3)∪(6, +∞)
(-1, 1)∪(3, 6)
(-∞, -1)∪(6, +∞)
下列说法正确的是
x=1是不等式-2x<1的解集
x=3是不等式-x<1的解集
x>-2是不等式-2x<1的解集
不等式-x<1的解集是x>-1
已知关于x的不等式|ax-1|+|ax-a|≥2a>0.1当a=1时求此不等式的解集2若此不等式的解
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