DIFFERENTIAL EQUATIONS 1. The equation of a curve which passes through the point (2, 1) and has gradient 2x-5 is: A. y=-5x+5 B. y x-5x-4 C. y=+y-1 D. y x-5x+5 %3D

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter10: Analytic Geometry
Section10.1: The Rectangular Coordinate System
Problem 40E: Find the exact volume of the solid that results when the region bounded in quadrant I by the axes...
icon
Related questions
Question

Solve Q1, 2, 3 explaining detailly each step

dy aid in Advanced level Mathematics...
42. The x-coordinate of the centriod of the area of the region defined by 02 y2 N(X-1) I8
A. 1
B.유 C.2
D.
13. The region bounded by the curve y= x+ 4 the lines y 8 and x 0 is rotated through 2n
radians about the x-axis. The y coordinate of the centriod of the solid formed is:
A. 0
B.
C.
D.
20
. DIFFERENTIAL EQUATIONS
1. The equation of a curve which passes through the point (2, 1) and has gradient 2x-5 is:
A. y=-5x+5 B. y=x-5x-4 C. y=+ y-1
D. y x -5x + 5
2. If
1 =
dx
3-S then y=
A. x- In(3-5x) +k B. In(3-5x) + k
C. 1- 5ln(3-5x) +k D.
25
+ k
(3-5x)
3. The general solution of the differential equation
du
+1=u wherek is a constant is:
dt
A. u =t+k
B. u=t+1+k C.u I+kt D. u 1-
kt
4. Given that
dy
dx
y+1
and that y = 1 when x = 0, then
r+1
A. y - 2x+3
B. y = 2x +1
5. Given that 2 + x*y=x* and that y = 0 when x= 0, expressed in terms of x. y=
C. y = 2x
D. 2y = x+ 1
A.
B. 1+ e*C. 1-e
D. 1-e*-
6. The general solution of the differential equation
1 dy
= In x is
A. y = (In x) + k B. y =;+ Inx)+k
C.y=(-+ in x) +k D. y = 2 In x + k
7. The general solution of the differential equation:
dy
2x +2xy, where k is a constant is:
dx
A. y= e*+k - 1 B. y e*+k-1 C. y e+k+ 1 D. y= e+k
8. Ifu= 2 when x= 2, the particular solution of the differential equation ()= 1 is:
dx
A. u = x- In(x - 1)
C. u =1+ In(x - 1)
B. u=x + In(x-1)
D.u x+ In(x - 1)+2
9. If (x+ 1) = 1-y and y = -3 when x 0 then y =
A.
B. -3
C. 4x +3
D. 4-4x
x+1
10. Given that 2y- sin 2x = 0 and y = 0 when x 0, then y? =
A.+ cos 2x
11. The general solution of the differential equation cosy =
positive constant is:
A. Y=sin'x
12. Given that y 1 when x = 2 the solution of the differential equation:(x - x) -v is
1-cos 2x
C-2 cos 2x
cos 2x
D.
dy
1
siny where k is a
dx
B. y= sin (kx)+:Cy= sin (1- kx) D. y sin (kx+1)
dx
51
Transcribed Image Text:dy aid in Advanced level Mathematics... 42. The x-coordinate of the centriod of the area of the region defined by 02 y2 N(X-1) I8 A. 1 B.유 C.2 D. 13. The region bounded by the curve y= x+ 4 the lines y 8 and x 0 is rotated through 2n radians about the x-axis. The y coordinate of the centriod of the solid formed is: A. 0 B. C. D. 20 . DIFFERENTIAL EQUATIONS 1. The equation of a curve which passes through the point (2, 1) and has gradient 2x-5 is: A. y=-5x+5 B. y=x-5x-4 C. y=+ y-1 D. y x -5x + 5 2. If 1 = dx 3-S then y= A. x- In(3-5x) +k B. In(3-5x) + k C. 1- 5ln(3-5x) +k D. 25 + k (3-5x) 3. The general solution of the differential equation du +1=u wherek is a constant is: dt A. u =t+k B. u=t+1+k C.u I+kt D. u 1- kt 4. Given that dy dx y+1 and that y = 1 when x = 0, then r+1 A. y - 2x+3 B. y = 2x +1 5. Given that 2 + x*y=x* and that y = 0 when x= 0, expressed in terms of x. y= C. y = 2x D. 2y = x+ 1 A. B. 1+ e*C. 1-e D. 1-e*- 6. The general solution of the differential equation 1 dy = In x is A. y = (In x) + k B. y =;+ Inx)+k C.y=(-+ in x) +k D. y = 2 In x + k 7. The general solution of the differential equation: dy 2x +2xy, where k is a constant is: dx A. y= e*+k - 1 B. y e*+k-1 C. y e+k+ 1 D. y= e+k 8. Ifu= 2 when x= 2, the particular solution of the differential equation ()= 1 is: dx A. u = x- In(x - 1) C. u =1+ In(x - 1) B. u=x + In(x-1) D.u x+ In(x - 1)+2 9. If (x+ 1) = 1-y and y = -3 when x 0 then y = A. B. -3 C. 4x +3 D. 4-4x x+1 10. Given that 2y- sin 2x = 0 and y = 0 when x 0, then y? = A.+ cos 2x 11. The general solution of the differential equation cosy = positive constant is: A. Y=sin'x 12. Given that y 1 when x = 2 the solution of the differential equation:(x - x) -v is 1-cos 2x C-2 cos 2x cos 2x D. dy 1 siny where k is a dx B. y= sin (kx)+:Cy= sin (1- kx) D. y sin (kx+1) dx 51
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Linear Equations
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
Geometry
ISBN:
9781337614085
Author:
Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:
Cengage,