某制糖厂第一年制糖5万吨,如果平均每年的产量比上一年增加10%,那么从第一年起,约几年内可使总产量达到30万吨(结果保留到个位)?
23-24高二上·全国·课后作业 查看更多[3]
更新时间:2023-09-11 15:09:10
|
相似题推荐
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】已知
是公差为3的等差数列,数列
满足
,
,
.
(Ⅰ)求
的通项公式;
(Ⅱ)求
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4995fa0403e013d888c0935ebfe15024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1793fecd8551ee9cd7b71e4c7c6a00e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31e4ebef0b20cce593ed13d259417bd.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(Ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
【推荐2】已知数列
的前n项和
.
(1)证明:
是等比数列.
(2)求数列
的前n项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41b9f1db05b33025b26138250a0d2be4.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79f232288a6d4b336e06153d81c41fe.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐1】一个乒乓球从
高的高度自由落下,每次反弹的高度都是原来高度的一半.
(1)当它第六次着地时,经过的路程是多少
?
(2)在乒乓球第几次着地时,它的总路程是
?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71a41641aa0d0e45a3c03d3d2c1196b.png)
(1)当它第六次着地时,经过的路程是多少
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
(2)在乒乓球第几次着地时,它的总路程是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e73d333e9f7dc24d164c3ad5ce73a873.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐2】等差数列
满足
,
.
(1)求
的通项公式和前
项和
;
(2)设等比数列
满足
,
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28171b364c85b51806eddb2c210cc1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8532c10340004ea834b31d0fa0a5181.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)设等比数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c340fdadffa2f9120a70430ce477f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46d12bacf6421a87f6f671dac42aa482.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次