考研试题列表
- 曲线[img src="https://img.haodaxue.net/uploadimg/image/20200606/20200606131118_99792.png" alt="" />,渐近线的条数为()
- 当x→0时,与根号x等价的无穷小量是()
- [img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605185820_80464.png" alt="" />
- 已知函数 1 1 sin x f x x x ,记 0 lim x a f x , (I) 求 a 的值 (II) 若 x 0 时, f x a 与 k x 是同阶无穷小,求常数 k 的值 . [img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605185612_90579.png" alt="" />
- 设 A 为3阶矩阵, |A| =3 ,*A 为 A 伴随矩阵,若交换 A 的第 1行与第 2行得矩阵 B ,则|BA|=()
- 将一枚硬币重复掷n 次,以 X 和 Y 分别表示正面向上和反面向上の次数, 则 X 和 Y の相关系数等于()
- img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605185202_37545.png" alt="" />
- 设A,B=,则A与B=() [img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605184900_63731.png" alt="" />
- img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605185031_33450.png" alt="" />
- img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605184826_64981.png" alt="" />
- 设 f(0)=0 ,则 f(x) 在 x =0 处可导の充要条件为()
- [img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605184515_59099.png" alt="" />
- 设f(x, y)在点(0,0)附近有定义,且[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605184058_37628.png" alt="" /> ,则
- 设 y =y(x) 是由方程[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605184133_22435.png" alt="" style="white-space:normal;" />所确定的隐函数,则 [img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605184155_93075.png" alt="" style="white-space:normal;" />.=
- 设[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605183606_14762.png" alt="" />,其中[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605183624_25108.png" alt="" />为任意常数,则下列向量组线性相关的为()
- 设区域D由曲线[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605182847_66681.png" alt="" />围成,则[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605182913_95972.png" alt="" />
- 设函数y=y(x)由参数方程[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605182742_52096.png" alt="" />
- 曲线y=x(1+arcsin2/x)的斜渐近线方程为_______
- 设函数 f (x, y)为可微函数,且对任意的 x, y 都有[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605180927_43035.png" alt="" />则使不等式[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605180945_31381.png" alt="" /> 成立的一个充分条件是
- 设[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605180718_34094.png" alt="" />,则数列 sn 有界是数列 an 收敛的()
- 设函数[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605180305_32986.png" alt="" />,其中n为正整数,则f'(0)=()
- 曲线[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605180002_37534.png" width="80" height="45" alt="" />的渐近线条数()
- 设矩阵[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605174616_88566.png" alt="" />,则()
- 设A为三阶矩阵,P为可逆矩阵,使得P-1AP=012 [img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605174148_95392.png" alt="" />
- 甲乙两人赛跑, 计时开始时, 甲在乙前方 10(单位: m)处,图中实线表示甲的速度曲线v=v1 (t )(单位: m/ s ),虚线表示乙的速度曲线v=v2(t),三块阴影部分面积的数值依次为10,20,3,计时开始后乙追上甲的时刻记为 t0 (单位: s),则() [img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605174021_71931.png" alt="" />
- 设 f (x, y) 具有一阶偏导数,且对任意的(x, y) ,[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605173517_21815.png" alt="" />
- 微分方程的特解可设为()
- 设数列[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605172931_62690.png" alt="" />收敛,则()
- 设二阶可导函数[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605160018_23434.png" alt="" />,则()
- 若函数[img src="https://img.haodaxue.net/uploadimg/image/20200605/20200605155812_97653.png" alt="" />在x=0处连续,则()
- For the new country to survive, ________ for its people to enjoy prosperity, new economic policies will be required.
- She had clearly no ________ of doing any work, although she was very well paid.
- The wealth of a country should be measured ________ the health and happiness of its people as well as the material goods it can produce.
- When workers are organized in trade unions, employers find it hard to lay them ________.
- It's more ________ to buy a season ticket if you travel every day.
- To study a foreign language, __________.
- He thoroughly understood the society __________.
- As you like pop music, __________ I like literature.
- I bought this eighteenth century writing desk at a quite ________ price.
- The farmer had to wear heavy boots in the winter because the fields were too wet and________.