(1)求
的值;
(2)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497afff42fac06abf71c70b0ab8a119f.png)
(2)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c13d03a16aeb7da8c30cc2d21986898.png)
更新时间:2024-01-11 19:09:13
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解答题-计算题
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适中
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名校
【推荐2】化简求值(需要写出计算过程).
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82d5a71f404e390599aecbcdc52015bf.png)
(2)计算:
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解答题-计算题
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【推荐2】化简或求值下列各式:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3287a11560644ac0b7a82066adb7c5df.png)
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解题方法
【推荐1】已知
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(1)证明:
;
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(2)若
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