化简求值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bb5d03b02875d0f5448f618c9a61a54.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac7fcab521e8f7b958d59f7dfed596d.png)
20-21高一下·浙江·期末 查看更多[3]
更新时间:2021-03-26 23:52:01
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解答题-计算题
|
容易
(0.94)
【推荐2】化简下列各式(
,
,
,
):
(1)
;(2)
;
(3)
;(4)
;
(5)
;(6)
;
(7)
;(8)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa68de301f96d9b50bdc0553ef8bce78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97078a98db05bfd29032f6c6e3165104.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90f6d0ba9681c4dcc7da98b7343aba8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e17f2485138846490d8b02b7849ef2.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d8c423744c47e11402d9ef4af763c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a04c9ede39206ecf63a396c9fa93bd2.png)
(7)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4c9c44897943650611b7595ed0b71f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a508c4a3ee9f8e80a590f420cf7b60.png)
您最近一年使用:0次
解答题-问答题
|
容易
(0.94)
【推荐1】一种放射性物质不断变化为其他物质,每经过一年剩留的质量约是原来的75%,大约经过多少年,该物质的剩留量是原来的
?
(参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
(参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f4d8318aba2dd01bfdc4c6b77c6121.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab1cb23df1e01a5120207dbfb4ae6c9.png)
您最近一年使用:0次