作者simpleq4 (想念远方的太阳)
看板NTU-Exam
标题[试题] 97-2 刘琼如 微积分乙下 第一次小考
时间Wed Mar 11 23:38:55 2009
课程名称︰微积分乙下
课程教师︰刘琼如
开课学院：理学院
开课系所︰数学系
考试日期（年月日）︰2009/3/5
考试时限（分钟）：20
是否需发放奖励金：yes
（如未明确表示，则不予发放）
试题 :
1.suppose the following system is under newton's law of warming. when a cold
drink is taken from a refrigerator, its temperature is 10。C. In a 25。C
room, its temperture has increased to 15。C after 30 minutes.
(A)Write down the temperature in a function of t
(B)When will its temperature be 20。C
2.Find the follwoing indeterminate integral
dx
(A)∫────────
√(4-X^2)
1+X
(B)∫────────dx
1+X^2
3.Find the derivatives
d d
(A) ─arcsinhx (B)─ x˙arctanhx
dx dx
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