1. Which of the following is not a D.E.? A. y"- 3y'=0 B. y dz = w(z)=0 I C. y A sinx + Bcosx D. L di/dt + Ri= E sinwt

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Chapter1: Functions And Models
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Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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1. Which of the following is not a D.E.?
A. y"- 3y'=0
B.
d y
dz
= w(z) =
x
A. = C
y
2. The solution of the D.E. xdy + ydx = 0 is
B. x² + y² = C
=0
3. The D.E. whose solution
A.
dy x
dx
B.
y
is y = Cx is
dy
dx
CS Scanned with CamScanner
= xy
5. The equation y = Ce* is a solution of the D.E.
A. TRUE
B. FALSE
I
C. y A sinx + Bcosx
dy
dx
D. L di /dt + Ri= E sinwt
C. xy = C
dy
c. dx = ²/2
x
4. How many arbitrary constants are in the general solution of the D.E. y" - 2y" + 2y = 0 ?
A. 1
B. 2
C. 3
D. 4
D. x + y = C
+ y = 0.
D.
dy
dx
= x + y
Transcribed Image Text:1. Which of the following is not a D.E.? A. y"- 3y'=0 B. d y dz = w(z) = x A. = C y 2. The solution of the D.E. xdy + ydx = 0 is B. x² + y² = C =0 3. The D.E. whose solution A. dy x dx B. y is y = Cx is dy dx CS Scanned with CamScanner = xy 5. The equation y = Ce* is a solution of the D.E. A. TRUE B. FALSE I C. y A sinx + Bcosx dy dx D. L di /dt + Ri= E sinwt C. xy = C dy c. dx = ²/2 x 4. How many arbitrary constants are in the general solution of the D.E. y" - 2y" + 2y = 0 ? A. 1 B. 2 C. 3 D. 4 D. x + y = C + y = 0. D. dy dx = x + y
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