1 . “已知数列
为等差数列,它的前n项和为
,若存在正整数m、
,使得
,则
”.类比上述结论,补完整命题:“已知等比数列
,______ ”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3192408b02b2a18368624389f35b0d19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31fa241aa355a70708f6caaee10de675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22652b7d4adb788bd7a33187f870e00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dad559edf20866cca8aa782a0a72e14.png)
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2 . 在等差数列
中,若
,
,则
.类比此性质,在等比数列
中,
,
,可得
、
、
、
之间的一个不等关系为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9645bd4d2002993b90ec6d48f9c04f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce64685821c3e55c07f151996ca8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946fdb370ab639db644674b52c0464af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0dd3fb6af23def773e1b0032a4f3c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda6dc559d07bc22c9a0ed1e3a6d01d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a548938d87c80ac47910607d3857007f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64fcc69dc28bc11b22f5c9bec9e2aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ada2c9f82459340da96274ee60ffbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0fcf02ab751cc3910a0bc0872ac2a7.png)
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21-22高一·全国·课后作业
3 . 我们把平面几何里相似形的概念推广到空间:如果两个几何体大小不一定相等,但形状完全相同,就把它们叫做相似体.下列几何体中,一定属于相似体的有________ .
①两个球体;②两个长方体;③两个正四面体;④两个正三棱柱;⑤两个正四棱锥.
①两个球体;②两个长方体;③两个正四面体;④两个正三棱柱;⑤两个正四棱锥.
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4 . 有以下命题:设
,
,…
是公差为
的等差数列
中任意
项,若
(
,
,
且
),则
;特别是,当
时,称
为
,
,…
的等差平均项.
(1)已知等差数列
的通项公式为
,根据上述命题,则
,
,
,
的等差平均项为:______ ;
(2)将上述真命题推广到各项为正实数的等比数列中:设
,
,…,
是公比为
的等比数列
中任意
项,若
(
,
,
且
),则______ ;特别是,当
时,称
为
,
,…,
的等比平均项.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/718becd70c94d6876d6e33d6dcd476c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc291ae9071d0d3ebde20a1cd507577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab14f60ca1a64d70a4dd5a662c6530e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c13c73a017127794debc08dfa029fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de09db4e35fed83c5ac3fb2bbd976906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8976d0f44ad2fa82e9dae988be07f728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b427fbf45913f86cc7b4c3bf1749f90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5880f852890d71bb1c95ffe7382e1a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ab1031a0c7db08519d6b56729fc7e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0116e1383a146ef6406d514764e87666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de009d9df65374c870a4012cf5db28df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/718becd70c94d6876d6e33d6dcd476c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc291ae9071d0d3ebde20a1cd507577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab14f60ca1a64d70a4dd5a662c6530e.png)
(1)已知等差数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9260f8989cfd0ffca5a49ffbc0668f14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e35eeaabd951fb09b2926807da3685b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53c211eecfe7c449b52ace8aef55d58.png)
(2)将上述真命题推广到各项为正实数的等比数列中:设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/718becd70c94d6876d6e33d6dcd476c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc291ae9071d0d3ebde20a1cd507577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab14f60ca1a64d70a4dd5a662c6530e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c13c73a017127794debc08dfa029fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de09db4e35fed83c5ac3fb2bbd976906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8976d0f44ad2fa82e9dae988be07f728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b427fbf45913f86cc7b4c3bf1749f90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5880f852890d71bb1c95ffe7382e1a2.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/718becd70c94d6876d6e33d6dcd476c4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab14f60ca1a64d70a4dd5a662c6530e.png)
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5 . 平面向量的基本定理:如果
、
是平面上两个不平行的向量,那么该平面上的任意向量
,存在唯一的一对实数
、
,使得
.类推得到空间向量的基本定理:如果
、
、
是______ ,那么对空间中的任意向量
,______ ,使得______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48bd8a052e56b53a66497b4b55a968a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc155e36276a2226c40a1f4ef7a0f41a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e096047b2aab801488f0ca1cc9a84c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48bd8a052e56b53a66497b4b55a968a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc155e36276a2226c40a1f4ef7a0f41a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8ac9a62f50f75e4ccaaf2b29ccf0e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
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6 . 已知命题“若数列
为等差数列,有
,(
,m、
,m、
)”是真命题.现已知数列
(
)为等比数列,若类比上述结论,则可得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63daaf00beb661a7cac39dbb9d1956e7.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bc88ec1f2a98680a78472fec8713a09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d9712c3b25f3030e166e136d3a4686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac69e6db1df13ed64756b4f391ae9fac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e167b43045b3297248e334c41c621b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0dd3fb6af23def773e1b0032a4f3c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63daaf00beb661a7cac39dbb9d1956e7.png)
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名校
解题方法
7 . 将数列
按“第n组有n个数”的规则分组如下:
,
,
,…,则第100组中的第一个数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deca922f74f28aa9ab391cb0202a31a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edacbac6148537c961bbb673c84dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f045e4763db222fa5feb8e155076dc3b.png)
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2022-02-28更新
|
341次组卷
|
8卷引用:内蒙古赤峰二中2021-2022学年高二下学期第一次月考数学(文)试题
名校
8 . 设
是圆
:
上一点,则圆
在
处的切线方程为
,由此类比可得到的正确结论是:设
是椭圆
:
上一点,则椭圆
在
处的切线方程为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf0d139c9810361b4971904a943856b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4896f254406ddfe0744b63f10724e76a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d340bd3f078b9261238d4fe59f1473c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf0d139c9810361b4971904a943856b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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9 . 求“方程
的解”有如下解题思路:设函数
,则函数
在
上是严格减函数,且
,所以原方程有唯一解
,类比上述解题思路,方程
的解为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49cfb1e9557770560280b5248ae2d0d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/570ae76599e821173f4a5905e54e41c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9da4fdfdddc259dcef9fdd4b826b64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c85121cf3eba180f0c47b8f889a9ffcd.png)
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20-21高二·全国·单元测试
10 . 已知两个正数a,b,可按规则c=an+a+b扩充为一个新数c,在a,b,c三个数中取两个较大的数,按上述规则再扩充得到一个新数,依次下去,将每扩充一次得到一个新数称为一次操作,若p>q>0,对数p和数q经过10次操作后,扩充所得的数为(p+1)m(q+1)n﹣1,其中m,n是正整数,则m+n的值是___ .
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