Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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19, 21 through 24

M Inbox (13,580) - thomaskielbasin X
%20(1).pdf
14. In the system of inear equations
2x+3y+4z=1
5x-y+z=4
3x + ay-32-3
has a unique solution, then the value of a + 4
(A) must be equal to 0,
(B) should not be equal to 0
(C) can be any real number,
(D) can be any rational number
(A) Unique solution
(B) No solution
(C) Infinitely many solution
(D) None of these
15. If a, b,, c, d,, a, b,, c, and d, are any non zero real
numbers, then which of the following types of solution
is NOT possible for the system of linear equations.
ax+by+cz=d₁
ax+by+cz=d₂
16. The partial differential equation of
z=f(x+at) - g (x-at) is _________
d²z
(B)
(A)
a²z a²z
=
di² ax²
a²
(B) O
(C) O
a'z
Əx²
(A) xyz,-+-
1
(C)
17. The first order partial differential equation by eliminat-
ing the arbitary function from z = fr-y) is
02 CREATIVE WRITERS-contract for X
(A) p+q=0
(B) yp+xq=0
(C) y²p+x²q=0
(D) 2y'p+3x'q=0
18. The general solution of the partial differential equation
x(y-2)p+y(2-x)q ==(x-y) is
1
(D) o E
1
+ + 1)-0
A
11 1
++ -+-
111
1- +
z x y Z
y zx
1
▬▬
(D)
2 / 20
dz
dz
=a
dr dx
a²z a²z
dr² ax²
意)。
DUET
<=0
²
mt
-0
11 1
y²z²x y
19. The solution of the partial differential equation
xy²z²p+xyz²q = x²y³z is
-
++)-0
Q Search
100%
+1
(C)2 an Toy
Untitled(4)
(A) X(x)= ce x²
(C) X(x) = cel(²)
се
a-b
21. If (x,y)= X(x). Y(y) be the solution of the partial differ-
ential equation 4:
du ди
+5. = 0, which is obtained by
dx dy
solving it by the method of separation of variables, then
X(x) (the function of x only in u(x, y)) is
[Note: Herec and k are arbitrary constants]
(B) 3
(D)
(C)
d'u
(A) 3: +4
dx
(C) -3
d is
2
(A)
A
22. Which of the following second order partial differential
equations is an elliptic equation?
d'u
axdy
2²
dx²
d'u
4
d'u
axdy
ex-1
4x
e-l
2K
+4
+5.
d'u du du
15 +7
dy² dx dy
d'u d'u d'u
+2.
dx² drdy dy²
+
(D) Z-WA Foy
d'u
Ju
+5
+4x-
axay dy
au dudu- 6x³y
+
ду ах ду
X
(B) X(x)= ce
(D) X(x) = ce) ²
(B)
(D)
24. The Fourier series of f(x) = e in the
(0, 2n) is
f(x) = + [a
al
du
ax
(B)
du du
-2 +5-
= 6.xy²
dx dy
23. The Fourier cosine series of the function fix) =
0≤xslis
(A) 1
(C) 0
(D)
+
(+)
= 7x²
e²-1
2x
e²-1
4x
du
7y=0
dy
1a
42
a, cos nx+b, sin nx, then the value of
interval
expand button
Transcribed Image Text:M Inbox (13,580) - thomaskielbasin X %20(1).pdf 14. In the system of inear equations 2x+3y+4z=1 5x-y+z=4 3x + ay-32-3 has a unique solution, then the value of a + 4 (A) must be equal to 0, (B) should not be equal to 0 (C) can be any real number, (D) can be any rational number (A) Unique solution (B) No solution (C) Infinitely many solution (D) None of these 15. If a, b,, c, d,, a, b,, c, and d, are any non zero real numbers, then which of the following types of solution is NOT possible for the system of linear equations. ax+by+cz=d₁ ax+by+cz=d₂ 16. The partial differential equation of z=f(x+at) - g (x-at) is _________ d²z (B) (A) a²z a²z = di² ax² a² (B) O (C) O a'z Əx² (A) xyz,-+- 1 (C) 17. The first order partial differential equation by eliminat- ing the arbitary function from z = fr-y) is 02 CREATIVE WRITERS-contract for X (A) p+q=0 (B) yp+xq=0 (C) y²p+x²q=0 (D) 2y'p+3x'q=0 18. The general solution of the partial differential equation x(y-2)p+y(2-x)q ==(x-y) is 1 (D) o E 1 + + 1)-0 A 11 1 ++ -+- 111 1- + z x y Z y zx 1 ▬▬ (D) 2 / 20 dz dz =a dr dx a²z a²z dr² ax² 意)。 DUET <=0 ² mt -0 11 1 y²z²x y 19. The solution of the partial differential equation xy²z²p+xyz²q = x²y³z is - ++)-0 Q Search 100% +1 (C)2 an Toy Untitled(4) (A) X(x)= ce x² (C) X(x) = cel(²) се a-b 21. If (x,y)= X(x). Y(y) be the solution of the partial differ- ential equation 4: du ди +5. = 0, which is obtained by dx dy solving it by the method of separation of variables, then X(x) (the function of x only in u(x, y)) is [Note: Herec and k are arbitrary constants] (B) 3 (D) (C) d'u (A) 3: +4 dx (C) -3 d is 2 (A) A 22. Which of the following second order partial differential equations is an elliptic equation? d'u axdy 2² dx² d'u 4 d'u axdy ex-1 4x e-l 2K +4 +5. d'u du du 15 +7 dy² dx dy d'u d'u d'u +2. dx² drdy dy² + (D) Z-WA Foy d'u Ju +5 +4x- axay dy au dudu- 6x³y + ду ах ду X (B) X(x)= ce (D) X(x) = ce) ² (B) (D) 24. The Fourier series of f(x) = e in the (0, 2n) is f(x) = + [a al du ax (B) du du -2 +5- = 6.xy² dx dy 23. The Fourier cosine series of the function fix) = 0≤xslis (A) 1 (C) 0 (D) + (+) = 7x² e²-1 2x e²-1 4x du 7y=0 dy 1a 42 a, cos nx+b, sin nx, then the value of interval
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