11-20. .
. ) .
11. )
12. )
13. )
14. )
15. )
16. ) )
17. )
18. )
19. )
20. )
):
1. , .
2. , .
3. , .
4. .
5. .
):
1. , , , :
,
2. , .
3. , .
4. , .
):
t =, dt =, dx=.
, . . .
21-25 :
21. x+ y'=0
22. 4 x3- y'=0
23. (x+1)ydx=dy
24. 2xdx=3y2dy
25. y'=x2y-x2
26-30
26. x2dy=y2dx, y=0,25 x=0,1
27. , y=5 =4
28. y'=32, y=5 =1
29.
, =2+ y'-2=1
30
, =2 =1
- .
- , .
- , .
31-40. .
b . . , : , - , - .
31-40
= 5, b = 4. = 4, b = 6. = 3, b = 5 | = 6, b = 2 = 4, b = 7 = 7, b = 5 | = 5, b = 6 = 2, b = 7 = 6, b =4 | = 8, b =7 | |||||||
|
|
() m n: () = .
10. . , ( + ) = () + ().
, ( + ) = () + () ().
20. . ,
() = () ().
30. Ā
(Ā) = 1 ().
Ā , ( )[, ]
41-50.
xi | -1 | ||
pi | p | 1-2p | p |
Y DY Y=2X+3.