Find the general solution of the differential equation allowing reduction of order

Блок 1- Математический анализ

1.

a)

2. If u and v are differentiable at x and if then the quotient is differentiable at x, and:

a)

3. Antiderivative for the function is a function :

a)

4. For the integral can be used Euler substitution in the following cases:

a)

5. If is continuous on the segment [a,b] and F is it’s any antiderivative on this segment, then we have the equality:

a)

6. Find domain of the function

a)

7. The differential of the n-th order function y=f(x) is called

a)

8. The homogeneous linear differential equation of the n-th order has the form:

a)

9. The inhomogeneous linear differential equation of the n-th order has the form:

a)

10. For function correctly the following statement:

a) are vertical asymptotes

11. For function value belongs to the interval:

a) (

12. Intervals of convexity and concavity of function :

a) Curve is convex in the interval (0;1)

13. It is true the following equality:

a)

14.

a)

15. Calculate the definite integral

a)

16. Find the particular solution of the differential equation , satisfying the initial condition

a)

17. Solve the differential equation

a)

18. Find the particular solution of the differential equation , satisfying the initial condition

a)

19. Calculate the double integral

a)

20. Calculate the triple integral

a)

21. A line x=3 is an asymptote for the function:

a)

22. Find the total differential of the function

a)

23. Analyse the function of the extremum:

a)

24. Solve the differential equation

a)

25. Find the general solution of the differential equation allowing reduction of order y’’’=sinx+cosx

a)

26. Find the general solution of the differential equation allowing reduction of order

a)

27. Calculate the double integral

a)

28. Calculate the triple integral

a)

29. Calculate with accuracy

a) 0,479

1. For function f(x)= correctly the following statement:

 

A) x=2 is a point of discontinuity of the first kind, jump

If u and v are differentiable functions of x, then their sum is differentiable at every point where u and y are both differentiable. At such points

a) (u(x)+v(x))’=u’(x)+v’(x)

 

3. Rational fraction can be written as:

A) + +

4. Calculate the definite integral

A) -

5. Find domain of the function z=

A) (x,y):

6. Faithful equality for function y=e2x-1

A) yn(0)=4e

7. Intervals of monotonicity of function y=(x+1)(x-2)2:

A) (-∞;1) decreases monotonically

8. It is true the following equality:

A) = ln + C

9. Rational fraction can be written as:

A) + +

10. Calculate the definite integral

A) ln2

11. Calculate the double integral

A) 4

12. Calculate the triple integral

A) 4

13. Function properties y= :

 

A) Points of discontinuity x=1; x=-1

14. Find the total differential of the function z=arctg +arctg

A) dz=0

15. Determine the function of the extrmum: z=x2+xy+y2-3x-6y.

A) zmin=z(0;3)=-9

16. Solve the differential equation yx2dy-lnxdx=0

A) = - (lnx+1)+C, C-const

Find the general solution of the differential equation allowing reduction of order

y’’=x2-2x

A) y= - +C1 x+C2 , C1, C2-const

18. Calculate the double integral .

A) ln

19. Calculate the triple integral

A) (ln2+ )

20. Find the area of convergence of the power series

A)

21. Find the sum of the series x+ + +…+ +…

A) S(x)= dx = ln

22. Function is continuous at point if :

a) A)

11. Faithful equality for function :

B)

12. Intervals of convexity and concavity of function :

C)curve is convex in the interval (0;1)

13. =

A) xsinx +cosx +c

15.Calculate the definite integral

B)arctge -

19.Calculate the double integral :

C)4

20. Calculate the triple integral

A)

21. Intervals of convexity and concavity of function

E) curve is convex in the interval (-∞;1)

22. Find the partial derivatives of the function

A)

23. Find the differential 3rd order of function

A)

24.Solve the differential equation

D)

27.Calculate the double integral :

B)57

29. Find the area of convergence of the power series

C)[0,+∞)

30. Find the sum of the series

A)