math 54 exam 5 review
DESCRIPTION
MATH 54 LE 5 UP DILIMANTRANSCRIPT
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Math 54 Fifth Exam ReviewMathematics 54 - Elementary Analysis 2
Institute of Mathematics
University of the Philippines-Diliman
28 November 2014
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Fifth Long Exam Schedule
FIFTH LONG EXAMINATION
2 December 2014, Tuesday
Discussion Class Time and Room
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Final Exam Schedule
FINAL EXAMINATION
8 December 2014, Monday
1:45 pm - 3:45 pm
WFQ2THQ9 (Esguerra) - MB 314
WFQ2THR9 (Esguerra) - MB 318
WFQ2THQ10 (A. Velasco) - MB 319
WFQ2THR10 (A. Velasco) - MB 320
WFQ2THQ11 (Arias) - MB 305
WFQ2THR11 (Arias) - MB 306
WFQ2THQ10 (Bargo) - AV 1
WFQ2THR10 (Bargo) - AV 1
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Final Exam Schedule
FINAL EXAMINATION
8 December 2014, Monday
1:45 pm - 3:45 pm
WFV2THU13 (Damasco) - MBAN 403
WFV2THV13 (Bargo) - MBAN 404
WFV2THU14 (Boydon) - MB 301
WFV2THV14 (Ramos) - MB 321
WFV2THU15 (Ong) - MB 302
WFV2THV15 (Ong) - MB 303
WFV2THU16 (Santos) - MBAN 307
WFV2THV16 (Wong) - MBAN 101/102
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Fifth Long Exam Coverage
Functions of Several Variables
Limits and Continuity of Functions of Several Variables
Partial Derivatives
Differentiability, Differentials, and Local Linear Approximation
Chain Rule
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Sample Questions
I. Write TRUE if the statement is always true, and FALSE if otherwise.
1. The level curve to the graph of f (x,y)= 16x2 y2 at k= 7 is a circle of
radius 3.
2. If f is a polynomial or a rational function of two variables and
(a,b) dom f , then lim(x,y)(a,b)
f (x,y)= f (a,b).
3. The slope of the tangent line to the curve of intersection of the graph of
z= g(x,y) and the plane x= a at the point (a,b,g(a,b)) is gy(a,b).
4. There is a function f of two variables such that fx(x,y)= x2+8xy and
fy(x,y)= 4x2+3yx.
5. If fx(a,b) and fy(a,b) both exist, then f is differentiable at (a,b).
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Sample Questions
II. Find and sketch the domain of f (x,y)=4x2y2+ ln(xy).
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III. Show that g(x,y)=
(x1)4 y4
(x1)2 +y2if (x,y) 6= (1,0)
1 if (x,y)= (1,0)
is discontinuous at
(1,0) and classify the discontinuity as removable or essential.
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Sample Questions
IV. Show that lim(x,y)(0,0)
x2y6
x4+2y12does not exist.
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Sample Questions
V. Let f (,s)=cos3
s.
1. Use the limit definition/alternative definition of the partial derivative at
a point to find fs(pi,4).
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Sample Questions
V. Let f (,s)=cos3
s.
2. If gs(,s)= f (,s), find gs(pi,4).
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Sample Questions
VI. Let z be a differentiable function of x and y implicitly defined in the
equation y3 tan(xz)= z2exy. Findz
xand
z
yat (0,2,1).
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Sample Questions
VII. Let the surface S be the graph of h(x,y)= sin(e4xy2).
1. Find the equation of the tangent plane to S at the point where x= 0 and
y= 1.
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VII. Let the surface S be the graph of h(x,y)= sin(e4xy2).
2. Use a local linear approximation to approximate sin(e0.04 (0.99)2
).
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Sample Questions
VII. Let the surface S be the graph of h(x,y)= sin(e4xy2).
3. If x= ln(u2v7) and y =u32v
4, use Chain Rule to find
h
uat u= v= 2.
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Sample Questions
VIII. Use differentials to estimate the amount of metal in an open
cylindrical can that is 10 cm high and 4 cm in diameter if the metal in
the bottom is 0.1 cm thick and the metal in the sides is 0.05 cm thick.
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