解题方法
1 . 已知
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00b80751c98f9991b9cfc03923a98834.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281805b9dfe2162215dfe6b5ad6d7b03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e47c5f442a5396024c1852ea84c6c39d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00b80751c98f9991b9cfc03923a98834.png)
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2022-07-17更新
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189次组卷
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2卷引用:陕西省汉中市校际联考2020-2021学年高二下学期期末理科数学试题