计算:(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e52ee83abfa47eb54e14c1fb8107c8.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/621dac570a20b96ba80422217b8d537e.png)
更新时间:2019-12-13 11:24:43
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解答题-问答题
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较易
(0.85)
【推荐2】用lg x,lg y,lg z表示下列各式:
(1)lg(xyz);
(2)lg
;
(3)lg
.
(1)lg(xyz);
(2)lg
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff633662498e93d616e0089b19662706.png)
(3)lg
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07888f76b62713aa4ea033294417867e.png)
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