设
,
,
,则a,b,c的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6169bff2ac978813a190bd2f3d10b4f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b603b36ae5287dd7b79700c35a3838b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/488eea0d0aca61d753a4893b0b0a755c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
更新时间:2024-05-25 23:26:42
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【推荐1】已知函数
(
),其中
为实数,且
对任意实数R恒成立,记
,
,
,则p、q、r的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b71d52eb4fa38df02085a70128f9e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56338343756a9ccc4d76b1381095b13f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617e44b1c2fff2a5940de5169893000e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c046ee4e7529bdf5867da3ef79814a6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710b7a4f6540470bb9e98dd7b4c4c9e9.png)
A.r<p<q | B.q<r<p |
C.p<q<r | D.q<p<r |
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【推荐2】不求值,比较下列各组数的大小,其中正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
【推荐1】在
中,角
的对边分别为
,则下列结论成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
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【推荐2】已知
,
,
分别为
内角
,
,
的对边,命题
若
,则
为锐角三角形,命题
若
,则
.下列命题为真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95563a79e3b68c597ae1e5167516ff88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2240a87f7a508cef8df7a45801ca7f5a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
【推荐1】已知
是定义在
上的奇函数,在
上是减函数且有
,若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2628e2dd7a988cc80530e739c22b2280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd50020c0e3198d4a6b2d26a413b1b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebadf71a3c73c1d82ae821018a7f67c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea38b69021050cf917de32c159be1022.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐2】A、B、C是△ABC的3个内角,且A<B<C(C≠
),则下列结论中一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
A.sinA<sinC | B.cotA<cotC |
C.tanA<tanC | D.cosA<cosC |
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