# integrals, vector fields, and differential equations

Not what you're looking for?

Please see attached

1) To find the general integral of the differential equation, discuss existence et uniqueness and find the particular integral that passes for the point (1;5/2)

2) Considering the linear equation of the 2nd order

z'' - (2/x) z' + (2/ x2)z = 10 / x2 , x > 0 .

If we know that the functions:

y1(x) = 2x+5 , y2(x) = x2 +5 , y3(x) = x2 +2x+5

are solutions of the equation, write the general integral, justifying the procedure.

3) To find the general integral of the differential equation

4) To calculate = (see attached file) (sin (3y) - x y2 + 2 ) dx dy

E

Where E is an ellipse with center in the origin and semi-axes with length 1 and 2, that has the Cartesian axes as axis of symmetry, avoiding not necessary calculation.

5) To draw the integration's domain and to exchange the order of integration of the following double integral, calculating the value:

6) Calculate the following double integral where

7. To calculate the curve integral of the function: f(x,y) = x2 - 2y2 along the line OAB, where O(0,0), A(-2,1) B(1,1).

8) To consider the vector field V(x, y) = (V1, V2) = (( y2 - 1/x, 2xy + 1/y).

To verify that the field is conservative in the set A = {(x, y ) R2 : x > 0, y > 0 }.

To determine the potential function that is cancel out in (1, 1).

##### Purchase this Solution

##### Solution Summary

This is a series of problems regarding curve integrals, double integrals, vector fields, and differential equations.

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.

##### Know Your Linear Equations

Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.

##### Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

##### Graphs and Functions

This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.

##### Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.