解题方法
1 . 已知
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40c3bef47eca74c23c275cc0ea1839b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34a97e4d59095d79e6344d04b0f927b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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2 . 如图所示,长方形
的边长
,它是水平放置的一个平面图形的直观图,则原图形的周长是______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/352529b508315e10a9a078898c2ae8f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3f67f17728f909cbaa4c6f2533c7888.png)
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3 . 已知复数
(
为虚数单位),则
的虚部为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1325963606ba21d30a9f3c3e6865d88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcfebd9f5a57036e6df6b6e14865da3.png)
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名校
4 . 若复数
满足
,则复数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee93db6620d0fef131aa1e09171e3aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
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5 . 已知数列
是等差数列,
,
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e3520254ca7eed646236763540b278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4303802a13e1255146196b779c70b48f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
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6 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbbce4d3c2976bc6e89911985a09da99.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbbce4d3c2976bc6e89911985a09da99.png)
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7 . 计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee51c289668f61761090f3a9ff8f6a4.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee51c289668f61761090f3a9ff8f6a4.png)
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解题方法
8 . 设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba24a5dce47fbd2a79a593ca0be5069.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8011eeefc40482bd0e627d84a30aeb19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba24a5dce47fbd2a79a593ca0be5069.png)
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9 . 已知复数
,且复数
满足
,则
在复平面内对应的点位于第__________ 象限.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad316d30f407b32b74564c6177723c95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a10de1216740ff1542ddb2968de5832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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解题方法
10 . 若
为锐角,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207b77aa3cf9351cf7ee25827f0688fd.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9da049c686ff81df5d6645ef51e993.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207b77aa3cf9351cf7ee25827f0688fd.png)
您最近一年使用:0次