2002考研数学一真题及答案

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2002 考研数学一真题及答案
、填(共 5 小题,题 3 分,满分 15 分.把在题线
上.)
(1)Error: Reference source not found= .
(2) Error: Reference source not found 由 Error:
Reference source not found , Error: Reference source not
found= .
(3)微分 Error: Reference source not found 足初 Error:
Reference source not found 的特解是 .
(4)已知实二次型
Error: Reference source not found Error: Reference
source not found Error: Reference source not found,
Error: Reference source not found= .
(5) Error: Reference source not found
Error: Reference source not found, Error: Reference
source not found Error: Reference source not
found,则 Error: Reference source not found= .
二、选择题(本题共 5 小题,每小题 3 分,满分 15 分.每小题给出的四个选项
中,只有一项符合题目要求,把所选项前的字母填在题后的括号内.)
(1)考虑二元函数 Error: Reference source not found 的下面 4 条性质:
①Error: Reference source not found Error: Reference source
not found 处连续; ②Error: Reference source not found
Error: Reference source not found 处的两个偏导数连续;
③Error: Reference source not found Error: Reference source
not found 处可微; ④Error: Reference source not found
Error: Reference source not found 处的两个偏导数存在.
Error: Reference source not found Error:
Reference source not found Error: Reference source not
found,则有
(A) ②Error: Reference source not found③Error: Reference
source not found①. (B) ③Error: Reference
source not found②Error: Reference source not found①.
(C) ③Error: Reference source not found④Error: Reference
source not found①. (D) ③Error: Reference
source not found①Error: Reference source not found④.
(2) Error: Reference source not found, Error: Reference
source not found,则级数 Error: Reference source not found
(A) 发散. (B) 绝对收敛.
(C) 条件收敛. (D) 收敛性根据所给条件不能判定.
(3) Error: Reference source not found Error: Reference
source not found 内有界且可导,则
(A) 当 Error: Reference source not found , Error: Reference
source not found.
(B) 当 Error: Reference source not found 存 , 有 Error:
Reference source not found.
(C) 当 Error: Reference source not found , Error: Reference
source not found.
(D) 当 Error: Reference source not found 存 , 有 Error:
Reference source not found.
(4) Error: Reference source not
found,Error: Reference source not found,线
的系数矩阵与增广矩阵的秩都为2,则这三张平面可能的位置关系为
(5) Error: Reference source not found Error: Reference
source not found 是任意两个相互独立的连续型随机变量,它们的概率密
Error: Reference source not found Error: Reference
source not found, Error: Reference source not
found Error: Reference source not found,则
(A) Error: Reference source not found Error: Reference source
not found 必为某一随机变量的概率密度.
(B) Error: Reference source not foundError: Reference source
not found必为某一随机变量的概率密度.
(C) Error: Reference source not found Error: Reference source
not found 必为某一随机变量的分布函数.
(D) Error: Reference source not foundError: Reference source
not found 必为某一随机变量的分布函数.
三、(本题满分 6 分)
数 Error: Reference source not found 在 Error: Reference
source not found , Error: Reference
source not found, Error: Reference source not found Error:
Reference source not found Error: Reference source not
found 高阶的无穷小,试确定 Error: Reference source not found 的值.
四、(本题满分 7 分)
线 Error: Reference source not found Error: Reference
source not found Error: Reference source not found 线
相同,写出此切线方程,并求极限 Error: Reference source not found.
五、(本题满分 7 分)
分 Error: Reference source not found, 中 Error:
Reference source not found.
六、(本题满分 8 分)
数 Error: Reference source not found 在 Error: Reference
source not found ,Error: Reference source not
found 上半平面(Error: Reference source not found0)内的有向分
线,(Error: Reference source not found),
(Error: Reference source not found).记
Error: Reference source not found
(1)线 Error: Reference source not found Error:
Reference source not found 无关;
(2) Error: Reference source not found , Error: Reference
source not found 的值.
七、(本题满分 7 分)
(1)验证 Error: Reference source not found 足微 Error:
Reference source not found;
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