高等数学考试试题(12~13 上A)英文2

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西南交通大学2011-2012学年第(一)学期考试试卷
课程代码 2100077课程名称 advance mathematica 考试时间120minutes
阅卷教师签字: 符伟
一、 Directions: There are 5 questions in this part. Then mark the
corresponding letter on the Answer Sheet with a single line. ()2045=⨯
1、 Let )(x f y =have second order derivative and 00,>'>''y y . If 0>∆x ,then ( )
A y dy ∆<<0
B dy 0<∆<y .
C 0dy <<∆y .
D 0<∆<y dy . 2、Suppose that x x f ~)(as +→0x ,then )(x f be . A. x e -1. B. x
x
-+11ln
. C. 11-+x . D. x cos 1- 3、Let the function ⎪⎩
⎪⎨⎧
=≠==∞
→00,0
1)(,)(lim x x x f x g a x f x ),(, then . A 0=x be first model discontinuity point of )(x g . B 0=x be second model discontinuity point of )(x g . C 0=x be continuity point of )(x g . D relation with a.
4、Let function x e x y y y 21)(65+=+'-'', then the particular solution form is ( ) . A x e b ax x 2)(+. B x e b ax 2)(+ . C x e b ax x 22)(+. D x axe 2.
5、Let the function dt x f x
⎰=51t sin t )(, then its derivative =')(x f .
A x x 5sin 5.
B x 5sin 25 .
C x x sin 52.
D x x 5sin 52.
二、Directions: There are 5 questions in this part. write the correct solution in the
班 级 学 号 姓 名
密封装订线 密封装订线 密封装订线
corresponding blank. ()2045=⨯
1、let the function 3x y =, then the curve rate at the point (-1,1) be .
2、let ⎩⎨⎧==bsint acost y x , equation of the tangent line to the curve at given point 4π
=t be .
3、The region ℜenclosed by the curves x e y =,0=y ,0=x and 1=x is rotated about the
axis x -. then the volume of the resulting solid v== .
4、let differential equation y x x y '=+''2)1(2, then the general solution y= .
5、Evaluate the integral
dx x x
⎰2ln = .
三、Directions: There are 8 questions in this part. evaluate the following questions
and write steps:( 4276=⨯)
1、Find the limit.x x x )arctan 2
(lim π

→. 2、Find the first and second derivatives of the function ⎪⎩

⎨⎧+=
+=t t y t x 111.
3、lEvaluate integral

-2
2
-2,1dt x .
4、Find the absolute maximum and absolute minimum values of function
2
)(x xe x f -=.
5、Evaluate
dx x x sin ⎰
.
6、Solve differential equation 33y x xy y =+'
四、 (9) find the arc length function for the curve x x y ln 8
1
-2=taking (1,1)as the
starting point.
五、 五、(9) S how that the inequality x x x x <<-arctan 3
3
for all 0>x .
.
It i。