解题方法
1 . 若平面
,
,
满足
,
,
,
,有下列四个判断:
①
②当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff4e42856fa5f6a4e12993e53b065e3.png)
③
④当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad98d54f81e63e4c48b2f19a0c630004.png)
其中,正确的是______ .(填写所有正确判断的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d35a45cfcdfbda18b089ce6698ccdbcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcf8e9ac2d447d042c5eaa1a00aca1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b82e5d28e2e5a4790e94db2daa6a07c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e78590c146f5ae707481029aa5c64e.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5bbfcfc23f7a2df2c91fe75b757c306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5bbfcfc23f7a2df2c91fe75b757c306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff4e42856fa5f6a4e12993e53b065e3.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f345365fe0a1986b80299f7a99a306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e98f18a8ca265f7e4a92b25ae33ab0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad98d54f81e63e4c48b2f19a0c630004.png)
其中,正确的是
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