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1 . 下面结论正确的是( )
A.函数![]() ![]() |
B.数学归纳法证明![]() ![]() ![]() ![]() ![]() |
C.在二项式![]() ![]() |
D.已知等差数列![]() ![]() ![]() ![]() ![]() |
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2 . 求值计算:
(1)
,求
的值
(2)
,求
的值
(3)复数z满足
(
为虚数单位),求z
(4)复数z满足:
,且z在复平面内对应的点位于第三象限,求
的值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d3b6c316c70ed7a88f9aed6454d5ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba20c2fe92bf98bf49b4e44b80919b4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4720fa72e415b389f82a794026559ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/680c514271ab4a9c8424873bd5e2b154.png)
(3)复数z满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f5661b4d48239c090583080987cfe4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
(4)复数z满足:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207e80766a7e6837927a0f04b0612b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e26e4e9b179160da5ce576e8fbd74e.png)
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3 . 数学与物理关系密切.根据瞬时变化率的相关知识,我们可以从数学角度给出瞬时加速度的定义:设某运动物体的速度关于时间的函数为
,则称
为该物体在
时刻的加速度.已知如图,
时,物体
与
间的细绳呈水平状态,
到滑轮的距离为
, 现控制
以速度
沿竖直杆匀速下滑,经细绳通过定滑轮拉动物体
在水平面运动.根据物理知识可以求得经过时间
,物体
的速度为
, 则物体
在
时刻的加速度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b530a5a8860c72cb1580f8dcc67eb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04cf7cd47a2c84a7814af09536c1d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d9fd58e71dcae6cafaf9037d20ebd76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aeb9a94e392f6759b18abed89aacc5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f58888df91890a19a1aa7511d19703f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52cccb80d7bae485981a96b6f799e590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed3fd029b6943ee30f2220eff80a938.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 化简与计算
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b7baf0fbf122c5b59a4eb0040043dc.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac9888f1d00eaf6bcbf7659359beb589.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707889c82744df97982f9d8250e85d4f.png)
(4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e708f9565c0143cbea0b3492d6c91ded.png)
(5)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d308d9172c4655e5a081861122ee19.png)
(6)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b7baf0fbf122c5b59a4eb0040043dc.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac9888f1d00eaf6bcbf7659359beb589.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707889c82744df97982f9d8250e85d4f.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e708f9565c0143cbea0b3492d6c91ded.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d308d9172c4655e5a081861122ee19.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d72fa7243554cd7f8885d783b1f736.png)
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5 . 函数
,
称为双曲函数,它们具有很多与三角函数类似的性质.以下关于三角函数和双曲函数性质的比较,正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed0d713cb8d99fe07395c8536ee3b10b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1392aa2eb76daff9047a0c6a3c077ff1.png)
三角函数 | 双曲函数 | |
A | ![]() ![]() | ![]() ![]() |
B | ![]() ![]() | ![]() ![]() |
C | ![]() | ![]() |
D | ![]() ![]() | ![]() ![]() |
A.A | B.B | C.C | D.D |
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