1 . 双曲函数是由以
为底的指数函数
和
所产生的.其定义为:双曲正弦
,双曲余弦
,双曲正切
.类比三角函数的公式,我们给出如下双曲函数的公式,其中正确公式的序号为______ .
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/091c27cd99dd546f3efa77ea03a8d9d4.png)
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/505226046079afd5eb9ca983d864cf0d.png)
③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/214bc547f6215a5570216c55a6da1059.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eae1b87c23b45ce5e5e74d5b1d73234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c03d4c32ee9ca46479fb71de45dfb47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787c7d4925710c1f7ecc5106143595b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46659ee64fc4d5e2eea2a245d806c4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521e3561a82d6a24feff97cd3c5f000a.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/091c27cd99dd546f3efa77ea03a8d9d4.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/505226046079afd5eb9ca983d864cf0d.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/214bc547f6215a5570216c55a6da1059.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbb5af71366e15029e7d45313f576186.png)
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2022-09-29更新
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3卷引用:安徽省江淮名校2023届高三上学期9月质量检测数学试题