13. y'=xy³ (1+x²)-1/2, y(0) = 1

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13

-
6.
7.
als als alsala
dx
dy
dx
dy
dx
dy
e
y + ey
x²
dx
1+ y²
X
-X
8.
y
In each of Problems 9 through 16:
a. Find the solution of the given initial value problem in explicit
form.
Gb. Plot the graph of the solution.
c. Determine (at least approximately) the interval in which the
solution is defined.
9. y'=(1-2x) y², y(0) = -1/6
10.
y'=(1-2x)/y, y(1) = -2
11.
xdx+ye dy = 0, y(0) = 1
12. dr/d0 = r2²/0, r(1) = 2
13.
14. y'= 2x/(1+2y), y(2) = 0
lo
15. y'= (3x² - e*)/(2y-5), y(0) = 1
16. sin(2x) dx + cos(3y) dy = 0, y(π/2) = π/3
Some of the results requested in Problems 17 through 22 can be
obtained either by solving the given equations analytically or by
plotting numerically generated approximations to the solutions. Try
to form an opinion about the advantages and disadvantages of each
approach.
G 17. Solve the initial value problem
y'=xy³ (1+x²)-1/2, y(0) = 1
y' =
1+3x²
Зу2 — бу
y' =
y(0) = 1
and determine the interval in which the solution is valid.
Hint: To find the interval of definition, look for points where the
integral curve has a vertical tangent.
G 18. Solve the initial value problem
3.x²
3y² - 4' y(1) = 0
and determine the interval in which the solution is valid.
Hint: To find the interval of definition, look for points where the
integral curve has a vertical tangent.
G 21
21.
y'
a. Determine how
depends on the initia
b. Suppose that yo
first reaches the valu
G 22. Consider the in
ty
y'
a.
Determine how
b. If yo = 2, find t
the value 3.99.
c. Find the range c
the interval 3.99<
23. Solve the equation
where a, b, c, and d are
24. Use separation of
dQ
dt
where a, b, r, and Qo
behaves as t-x
Homogeneous Equatic
dy/dx = f(x, y) can
only, then the equation
can always be transform
the dependent variable. I
homogeneous equations
The word "homogeneous
contexts. The homogeneou
the homogeneous equation
Transcribed Image Text:- 6. 7. als als alsala dx dy dx dy dx dy e y + ey x² dx 1+ y² X -X 8. y In each of Problems 9 through 16: a. Find the solution of the given initial value problem in explicit form. Gb. Plot the graph of the solution. c. Determine (at least approximately) the interval in which the solution is defined. 9. y'=(1-2x) y², y(0) = -1/6 10. y'=(1-2x)/y, y(1) = -2 11. xdx+ye dy = 0, y(0) = 1 12. dr/d0 = r2²/0, r(1) = 2 13. 14. y'= 2x/(1+2y), y(2) = 0 lo 15. y'= (3x² - e*)/(2y-5), y(0) = 1 16. sin(2x) dx + cos(3y) dy = 0, y(π/2) = π/3 Some of the results requested in Problems 17 through 22 can be obtained either by solving the given equations analytically or by plotting numerically generated approximations to the solutions. Try to form an opinion about the advantages and disadvantages of each approach. G 17. Solve the initial value problem y'=xy³ (1+x²)-1/2, y(0) = 1 y' = 1+3x² Зу2 — бу y' = y(0) = 1 and determine the interval in which the solution is valid. Hint: To find the interval of definition, look for points where the integral curve has a vertical tangent. G 18. Solve the initial value problem 3.x² 3y² - 4' y(1) = 0 and determine the interval in which the solution is valid. Hint: To find the interval of definition, look for points where the integral curve has a vertical tangent. G 21 21. y' a. Determine how depends on the initia b. Suppose that yo first reaches the valu G 22. Consider the in ty y' a. Determine how b. If yo = 2, find t the value 3.99. c. Find the range c the interval 3.99< 23. Solve the equation where a, b, c, and d are 24. Use separation of dQ dt where a, b, r, and Qo behaves as t-x Homogeneous Equatic dy/dx = f(x, y) can only, then the equation can always be transform the dependent variable. I homogeneous equations The word "homogeneous contexts. The homogeneou the homogeneous equation
Expert Solution
Step 1

Given:-

           y' = xy^3(1+x^2)^(-1/2)    , y(0) =1

 

ans :-

Here's a solution to the differential equation y' = xy^3(1+x^2)^(-1/2) using separation of variables:-

 

  1. Separate the variables:

    dy/dx = xy^3(1 + x^2)^(-1/2)

    (1 + x^2)^(1/2) dy = xy^3 dx
  2. Integrate both sides:

    ∫(1 + x^2)^(1/2) dy = ∫xy^3 dx

    y * (1 + x^2)^(1/2) = (2/4) x^4 y^4 + C
  3. Solve for y:

    y^4 * (1 + x^2) = Cx^2 + C'

    y^4 = (Cx^2 + C') / (1 + x^2)

 

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