作者Akerker (阿克克(*〞︶〝)/)
看板NTU-Exam
标题[试题] 101上 王振男 微积分乙上 期末考
时间Wed May 8 21:50:56 2013
课程名称︰微积分乙上
课程性质︰系必修
课程教师︰王振男
开课学院:医学院
开课系所︰医学系
考试日期(年月日)︰2012/1/8
考试时限(分钟):110分钟
是否需发放奖励金:是,谢谢
(如未明确表示,则不予发放)
试题:
1.(10%)Show that if f(x)=[e^x+e^(-x)]/2 then the length of the curve f(x)
between x=0 and x=a for any a>0 is given by f'(a).
2.(10%)Find the volume of the solid obtained by rotating the region bounded
by the curves y=√cosx, y=1 ,and x=π/2, about the x-axis.
3(x^2)+4x+3
3.(20%)Evaluate the integral ∫──────── dx.
(x^2+1)^2
x^2
4.(10%)Evaluate the indefinite integral ∫──────── dx for x>1.
(x^2-1)^(3/2)
5.(10%)Find the antiderivatives of (lnx)^2.
6.Let f(x)=ln(1+x) for x>-1.
(a)(5%)Show that for all x>-1,
f(x)=x-(x^2)/2+(x^3)/3-……+[(-1)^(n+1)][(x^n)/n]+R_n(x) with
explicit R_n(x).(R_n表示n为下标)
∞
(b)(10%)Can we write f(x) Σ [(-1)^(k+1)][(x^k)/k] for any x>-1?
Why? k=1
7.(10%)Determine whether the following improper integral converges or not.
π/2-
∫ [(sin(x/2))^100]tanx dx.
0
8.(15%)Determine whether the following improper integral converges or not.
∞ 1
∫ ───────── dx.
e x^[1+(sinx/lnx)]
参考答案:
2.[(π^2)/2]-π
3.3arctanx-2/(X^2+1)+c(c is a constant)
4.-x/√(x^2-1)+ln(x+√(x^2-1))+c
5.x(lnx)^2-2xlnx+2x+c(c is a constant)
6.
http://i.imgur.com/vLLV6vU.jpg
7.It diverges.
8.It diverges.
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※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.112.240.103
1F:推 ALegmontnick:done 05/09 06:40
2F:推 newversion :6(b)应该是 no by 收敛区间只有 -1 < x <= 1 05/09 21:27
3F:→ newversion : 吧 05/09 21:28
4F:推 newversion :6(a) R_n = (-1)^(n+2)*x^(n+1)/ [(n+1) (1+c)^n+1 ] 05/09 22:14
5F:→ newversion :for some c between 0 & x 05/09 22:14
※ 编辑: Akerker 来自: 140.112.240.103 (05/12 20:36)
7F:→ Akerker :如果知道我的成绩就不会和我多说什麽了(?) 05/12 20:36
8F:→ Akerker :刚才想了一想,我的意思是考很烂啦不是很好 XDDD 05/12 20:53
9F:推 ALegmontnick:已重收 05/14 14:57