名校
1 . 已知性质A:“在等差数列
中,若
,则
.
成立” .
(1)类比性质A,请写出等比数列的类似性质B:
性质B:“在等比数列
中,若
,_________________________” .
(2)证明性质A或 性质B.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6da36e2975874643c45a4827916de04b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb688568fc28eebc15b0b282aee24518.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46fe9903232ce27cbc2e503377188408.png)
(1)类比性质A,请写出等比数列的类似性质B:
性质B:“在等比数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2448cf72af76b810310e4cfb9818e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/920329880cf6d51ed1064fd6e69d32f3.png)
(2)证明性质A
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2 . 已知
为等差数列,
,
.若
为等比数列,
,则
类似的结论是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11cc7361110802104e4f6069305cf8a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbbc973b25bc59722fb1121f35268dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09ccba99c9c757ff596cda47777801e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
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2018-04-29更新
|
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2卷引用:贵州省思南中学2018-2019学年高二下学期期中考试数学(理)试题
2012·陕西·一模
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3 . 若数列
是等差数列,则数列
也为等差数列.类比这一性质可知,若正项数列
是等比数列,且
也是等比数列,则
的表达式应为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10dee8c0b786890699a5912ce7f46bc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e260b088f071983f254ce8f5163fcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e260b088f071983f254ce8f5163fcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
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21卷引用:山西省运城市康杰中学2017-2018学年高二下学期期中考试数学(理)试题
山西省运城市康杰中学2017-2018学年高二下学期期中考试数学(理)试题重庆市江津第六中学2018-2019学年高二下学期期中(文)数学试题陕西省西安市西北工业大学附中2017-2018学年高二下学期期中数学(理)试题河北省张家口市2016-2017学年高二下学期期末考试文科数学试卷(已下线)段考模拟:高二理科数学下学期第一次月考(3月)原创卷B卷2018年高考数学(理科,通用版)练酷专题二轮复习课时跟踪检测:(十三) 算法、推理与证明山西省芮城县2019-2020学年高二下学期3月月考数学(理)试题广东省佛山市石门高级中学2018-2019学年高二下学期第一次统考数学(理)试题黑龙江省大庆铁人中学2018-2019学年高二下学期第一次月考数学(文)试题山西省忻州市第二中学2019-2020学年高二下学期3月月考数学(理)试题陕西省延安市第一中学2019-2020学年高二下学期线上摸底考试数学(理)试题江西省赣州市第一中学2020-2021学年高二下学期开学测试数学试题(已下线)2.1.1 合情推理-2020-2021学年高二数学(理)课时同步练(人教A版选修2-2)陕西省西安市西北工业大学附属中学2020-2021学年高二下学期第二次月考理科数学试题江西省宜春市2020-2021学年高二年级上学期期末质量监测数学(理)试题陕西省西北工业大学咸阳启迪中学2022-2023学年高二下学期第一次月考理科数学试题(已下线)2012届陕西省师大附中高三高考模拟理科数学(已下线)2014届上海交大附中高三数学理总复习二推理与证明等练习卷(已下线)2014年高考数学(文)二轮专题复习与测试专题3第1课时练习卷安徽省六安市第一中学2018届高三上学期第三次月考数学(文)试题(已下线)专题11.1 合情推理与演绎推理(讲)【文】-《2020年高考一轮复习讲练测》
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4 . 在等差数列
中,若
,则有
成立.类比上述性质,在等比数列
中,若
,则有_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72db14b97a5318c818b61a19862218c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/824e4b7f56382b8b3fac136a362fff9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de5e72acc9563b77a34d99fe085cfc10.png)
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2018-04-11更新
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2卷引用:广东省中山市第一中学2017-2018学年高二下学期第一次统测(4月段考)数学(文)试题
名校
5 . 若等差数列
的公差为
,前
项和为
,则数列
为等差数列,公差为
,类似地,若各项均为正数的等比数列
的公比为
,前
项积为
,则等比数列
的公比为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dea1dd4ffcb4cf0697ca43079f6a1f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c9823c2429d3867217d283dba4bf042.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec184bb0761e498016fc6c0a01229652.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-11-14更新
|
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4卷引用:甘肃省临夏中学2018-2019学年高二下学期期中考试数学(理)试题
甘肃省临夏中学2018-2019学年高二下学期期中考试数学(理)试题辽宁省大连育明高级中学、本溪市高级中学2018届高三10月月考数学(文)试题(已下线)专题12.1 合情推理与演绎推理 (精练)-2021届高考数学(文)一轮复习学与练(已下线)专题12.1 合情推理与演绎推理 (精讲)-2021年高考数学(理)一轮复习学与练
名校
6 . 下面给出了四个类比推理:
①
为实数,若
则
;类比推出:
为复数,若
则
.
② 若数列
是等差数列,
,则数列
也是等差数列;类比推出:若数列
是各项都为正数的等比数列,
,则数列
也是等比数列.
③ 若
则
; 类比推出:若
为三个向量,则
.
④ 若圆的半径为
,则圆的面积为
;类比推出:若椭圆的长半轴长为
,短半轴长为
,则椭圆的面积为
.上述四个推理中,结论正确的是
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ab9b3610c3d5e741235fc6c838517c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09e51c208d5e572c4ba46d1bca73a012.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df86174ae575ed1e17d15c3f4dc89c10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6642d2fa476b354e0f654666e939d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83f992a6156a419f99520f26a1fac2e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634189f68a1c0acdc568abf07866d5a9.png)
② 若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9832bfda65341410bb3b40037a43dac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee4464b3b4eb6e52ee02f095aae84f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cca3ebd10a38201939a3694cc95186a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6384fda7992e0751096f7b45d6e5a27b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/900a10d0685d864ec91c344741f78def.png)
③ 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0260c51703ee6a152afe9d4dc9489692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aab77bc798c1220ba2bf4a9ee45dfb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2daaa99c97229b49f0517d12b508a659.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef830ae3060741dc59e3e0670e78c3c.png)
④ 若圆的半径为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c08aca740e2092da99d9ddb14f05b7fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f37efe04a6e07c29563644958e7b799f.png)
A.① ② | B.② ③ | C.① ④ | D.② ④ |
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|
727次组卷
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2卷引用:福建省福州市八县协作校2016-2017学年高二下学期期中考试数学(理)试题
7 . 若数列
是等差数列,则数列
也是等差数列;类比上述性质,相应地,
是正项等比数列,则也是等比数列___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29a27dbf03f72c6666712f792b6c4ef4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
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2017-08-26更新
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370次组卷
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3卷引用:【全国校级联考】吉林省舒兰一中、吉化一中、九台一中、榆树实验中学等八校联考2017-2018学年高二下学期期中考试数学(文)试题
10-11高二下·浙江温州·期中
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8 . 若等差数列
的首项为
公差为
,前
项的和为
,则数列
为等差数列,且通项为
.类似地,若各项均为正数的等比数列
的首项为
,公比为
,前
项的积为
,则数列
为等比数列,通项为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4b9e475158c0c9eef9dd015342221c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dea1dd4ffcb4cf0697ca43079f6a1f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a569964b92c3faaab9ce7d5d9b8c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec184bb0761e498016fc6c0a01229652.png)
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9 . 对大于或等于2的自然数
的
次方幂有如下分解方式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ff6971fa91db4862141d1d115097b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a445c76efa52ac48438f85434090ef.png)
根据上述分解规律,
,则
的分解中最大的数是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8dea70fa36b4fe815ec149cead458f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18014e43c43dd0f0b437bdc5842ffb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ff6971fa91db4862141d1d115097b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/430b424bdc195b1dab036779fb956b72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bada139c13f8dfd0d2a32cea347b4a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a445c76efa52ac48438f85434090ef.png)
根据上述分解规律,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c093c3884f45e601bd3efcaf21211602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76132a2f71111dbef4ad055857b7127b.png)
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10 . 在等比数列
中,若前
项之积为
,则有
,那么在等差数列
中,若前
项之和为
,用类比的方法得到的结论是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a79ecb446bfb2aa85f142ed8ca6683b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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2017-04-23更新
|
364次组卷
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2卷引用:2016-2017学年安徽省池州市第一中学高二下学期期中考试数学(理)试卷