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The final exam for Math 104 at the University of Pennsylvania in Fall 2017. The exam consists of 15 questions and covers topics such as finding volumes of solids, evaluating integrals, finding limits of sequences, and determining the convergence of series. The exam instructions state that no calculators are allowed, but students may use one standard sized 8.5”X11” sheet with notes handwritten on both sides. The exam also emphasizes the importance of showing work and complying with the University of Pennsylvania's Code of Academic Integrity.
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First and Last Name ____________________________________(PRINT) Penn ID_________________
Professor (circle one): Ghini-Bettiol Sergel Block Gressman Rimmer
Recitation number _____________________________
There are fifteen questions on this examination. No calculators are allowed, but you may use one
standard sized 8.5”X11” sheet with notes handwritten on both sides. Show your work in the space
provided, and then transfer your answers carefully to this sheet.
It is important to show your work because we will be going back over it – you might gain additional
partial credit for substantial progress toward the solution of a problem, or you might lose credit for an
unsubstantiated correct answer.
Please put away and silence (don’t set to vibrate) all electronic devices (computers, tablets, cell phones,
mp3 players), use of these are forbidden during the examination period. Good luck!
My signature below certifies that I have complied with the University of Pennsylvania's Code of
Academic Integrity in completing this examination. In particular, all the work on this test is my own.
Signature
above by y sin x and bounded below y 0 for 0 x about the line x.
(a)
2
2
2
2
(e)
2
(f) None of these
4
2
1
16 2
x
y x
x
(a)
(b)
(c)
(d)
(e)
(f) None of these
(^2 )
2
1
1
.
x x
dx
x x
(a) 0 (b) 1 (c)
1 ln
(d) 2 (e)
2 ln
(f) None of these
3
3/
2
0
.
25
dx
x
(a) 0 (b)
(c)
(d)
(e)
(f) None of these
2
sin with 0
dy
x y x x y
dx
What is y 2 (^) ?
2 2 /
r b
Find so that is a probability density function pdf
for the random variable , is a constant.
This is used to model the distance between the nucleus and the electron
in a hydrogen atom. With 0,
C
r b
b it is called the Bohr length.
Find the mean of this pdf.
(a)
3
, mean
b
C b (b) 2
C , mean b
b
(c)
2
C , mean b
b
(d) 3
, mean
C b
b
(e)
2
2
, mean
C b
b
(f)
3
, mean
C b
b
n
(a) 0 (b) 1 (c) ln 3 (d) 3 (e) (f) the limit does not exist
converge conditionally , or diverge. For full credit be sure
to explain your reasoning and tell what test was used.
A
C D
2
2 2
1 2 1
3
n n n
n
n n
n
(a) both A (b) one A, the other C (c) one A, the other D
(d) both C (e) one C , the otherD (f) both D
3
2
2 5
.
n n
n
x
n
(a)
11 9
2 2
(b) (^)
11 9
2 2
(c) (^)
11 9
2 2
(d) (^)
(^9 )
2 2
(e) (^)
9 11
2 2
, (^) (f)
(^9 )
2 2
(^)
3
0
1
sin for all. Find the Taylor Series of centered at 0.
F x F
F x x x F x x
x
(^)
(a)
6 3
0
1
2 1!
n n
n
x
n
(^) (d)
6 2
0
1
2 1!
n n
n
x
n
(b)
6 2
0
1 6 3
2 1!
n n
n
n x
n
(e)
6 2
0
1 6 2
2 1!
n n
n
n x
n
(c)
6 3
0
1
6 3 2 1!
n n
n
x
n n
(f)
2 3
0
1
6 3 2 1!
n n
n
x
n n
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