درجه معادله دیفرانسیل

18:51

14:04

2:12

7:25

1:02:44

23:53

10:51

30:04

15:47

10:50

1:39

1:20:23

14:30

21:02

36:14

5:19

15:28

11:34

5:43

15:01

16:04

8:23

17:02

5:04

12:16

20:20

16:25

16:20

1:54:26

4:27:36

1:48:40

14:51

9:00

28:16

1:41:51

3:54

15:42

23:06

56:55

13:36