convolution problem in mathematics 2

28:10

15:21

9:16

34:26

11:36

1:33

4:31

50:15

49:08

33:48

5:35

2:46

47:18

1:13

1:01

5:21

2:25

9:57

9:16

1:10

52:16

کوتاه

5:26

9:57

6:19

7:30

4:55

3:53

1:33

38:29

53:10

7:52

3:02

1:21

1:05:11

12:57

3:02

1:44:43

1:03:17

4:00