1 . 已知i是虚数单位,若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3467d5228b1720cb224745ba64936cea.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2 . 设复数
,其中
为虚数单位,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3af055559b4147965361f0b8106e68ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a7a554c7e1a2ea005c5a093f6f4666.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 已知复数
(
是虚数单位).若
,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7267ec1fb1d38dca647965b981ac1b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb090b953f6f77df60ce6b8addfb4da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.2 | B.0 | C.1或2 | D.0或2 |
您最近一年使用:0次
2020-06-10更新
|
221次组卷
|
2卷引用:浙江省名校新高考研究联盟2018届高三下学期第三次联考数学试题
4 . 已知
,
(
是虚数单位),则( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d7e46058bb3831bc72ddaa964d9757a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 复数
(
是虚数单位),则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ad367e62af84322c248bad8d34b667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36024e5403c79c994996bc92b90d74f0.png)
A.![]() | B.3 | C.4 | D.8 |
您最近一年使用:0次
解题方法
6 . 若
(
,且
是虚数单位),则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f78e3c11b6c921e35d2c298fbb780ea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa791a760ad60193919b003880d3c40.png)
A.![]() | B.0 | C.2 | D.1 |
您最近一年使用:0次
7 . 设复数
(i是虚数单位),则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f20b3e5c689242897ca18789d737b6c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92dcaf33b58d2ddc17172e49fbb4d267.png)
A.2 | B.![]() | C.2i | D.![]() |
您最近一年使用:0次
名校
8 . 已知i是虚数单位,复数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca6c17df8a51bb6492426fddcfb622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00eb7e469d60ab9dd4da72163364dc20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca6c17df8a51bb6492426fddcfb622.png)
A.25 | B.5 | C.![]() | D.![]() |
您最近一年使用:0次
2020-06-09更新
|
248次组卷
|
4卷引用:2018年浙江省新高考仿真训练卷(五)
名校
9 . 已知数列
、
满足
,
,
,
.
(Ⅰ)求证:
;
(Ⅱ)设数列
的前
项和为
,求证:
;
(Ⅲ)设数列
的前
项和为
,求证:当
时,
.
![](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/86fc336b4a83bf6d66c4afcc431597f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad6d8a8a57db1c2fc7f465d2cfd2aa78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71406c902e2bfb15f5b84ea419611e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5530b78617f9a9976adc605a71fe0d48.png)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e970038ed20d95a45c228ee5572861.png)
(Ⅱ)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0441e285d990afd18061376145503267.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/b704bf47e74f620c582874c58d9f0993.png)
(Ⅲ)设数列
![](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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91b2a778937512218c0cb49ea728eb1.png)
您最近一年使用:0次
10 . 已知复数
,其中
为虚数单位,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882bff376e1d71865bd23b747ef78a66.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f07c1076d78c12f93c07a622afb7ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882bff376e1d71865bd23b747ef78a66.png)
您最近一年使用:0次