31. Find the area of the finite region bounded by the curves y = x(10 - x) and y = x (3x+ 2).

Calculus: Early Transcendentals
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Author:James Stewart
Publisher:James Stewart
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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Solve all Q31 explaining detailly each step

II. b) Application:
28. Find the area of the finite region in the first quadrant bounded by the curves y = e°, y=e*,
x = In2.
d²y
dy
+ 13y = 0
3x
29. a) Given that y = e*sin2x, show that:
dx²
dx
%3D
b) Solve the differential equation (x- 4)-- + 2xy = 0, (x ±2). given that y = 1/5 when x =
dx
3.
30. i) Find in the form y = f(x), the general solution of the differential equation:
dy
x²-1
(1+x*)–-2x(1-y)= 0. Given that y = 0 when x = 1, show that f(x)
31. Find the area of the finite region bounded by the curves y = x(10 - x) and y = x (3x+ 2).
|
dx
x²+1
dy
32. Show that the solution of the differential equation (x + x – 2)-
+ 2x + 1 =0 for which y=
di
1
- and x= 2 is y= Sketch the integral curve corresponding to this solution showing
4
(x+1)(x+2)
clearly all the vertical and horizontal asymptotes and turning points.
áy
33. Solve in the form y = f(x), the differential equation: x
= v (2x + 1). Hence on a separate
diagram, skeich aiso the graph of y = f(x)|.
34. Find the area of the finite region enclosed by the curve xy = 1 and line x+y = 4, leaving
your answer in terms of naturai logarithms.
35. Find the total area of the finite regions bounded by the crve y = x(2- X), the x-axis and the
ordinate at x =
3D3.
36. Solve the differential equation (x-2)(x+3)-- (2x+1)= 0 given that y= In6 when x =
dy
36
37. Find the general solution of the differential equation: x = Inx + y Inx, expressing your
dy
dx
answer in the form y = f(x).
38. The table given values of a continuous variable y corresponding to the given values of x.
1
3
7
27
65
119
a. Use the trapezium rule to find an estimate for vdx.
b. A relation of the form y = ax´+bx is known to exist between x and y. By plotting-against
X. estimate the values of the constant a and b to the nearest interger. Hence, obtain another
7
estimate for f ydx by direct intergration.(
39. Find the area of the region enclosed by the curve with equation: y = x(2 – x) and theline
y = x.
60
2.
Transcribed Image Text:II. b) Application: 28. Find the area of the finite region in the first quadrant bounded by the curves y = e°, y=e*, x = In2. d²y dy + 13y = 0 3x 29. a) Given that y = e*sin2x, show that: dx² dx %3D b) Solve the differential equation (x- 4)-- + 2xy = 0, (x ±2). given that y = 1/5 when x = dx 3. 30. i) Find in the form y = f(x), the general solution of the differential equation: dy x²-1 (1+x*)–-2x(1-y)= 0. Given that y = 0 when x = 1, show that f(x) 31. Find the area of the finite region bounded by the curves y = x(10 - x) and y = x (3x+ 2). | dx x²+1 dy 32. Show that the solution of the differential equation (x + x – 2)- + 2x + 1 =0 for which y= di 1 - and x= 2 is y= Sketch the integral curve corresponding to this solution showing 4 (x+1)(x+2) clearly all the vertical and horizontal asymptotes and turning points. áy 33. Solve in the form y = f(x), the differential equation: x = v (2x + 1). Hence on a separate diagram, skeich aiso the graph of y = f(x)|. 34. Find the area of the finite region enclosed by the curve xy = 1 and line x+y = 4, leaving your answer in terms of naturai logarithms. 35. Find the total area of the finite regions bounded by the crve y = x(2- X), the x-axis and the ordinate at x = 3D3. 36. Solve the differential equation (x-2)(x+3)-- (2x+1)= 0 given that y= In6 when x = dy 36 37. Find the general solution of the differential equation: x = Inx + y Inx, expressing your dy dx answer in the form y = f(x). 38. The table given values of a continuous variable y corresponding to the given values of x. 1 3 7 27 65 119 a. Use the trapezium rule to find an estimate for vdx. b. A relation of the form y = ax´+bx is known to exist between x and y. By plotting-against X. estimate the values of the constant a and b to the nearest interger. Hence, obtain another 7 estimate for f ydx by direct intergration.( 39. Find the area of the region enclosed by the curve with equation: y = x(2 – x) and theline y = x. 60 2.
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