已知
为非零实数,
,且同时满足:①
,②
,则
的值等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80dec5ee8e0accda8fc6e3068186d033.png)
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更新时间:2018-01-24 08:59:29
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