simple trigonometric equation

10:37

10:24

13:31

8:38

14:05

21:42

29:42

29:13

13:14

11:21

7:38

11:21

11:34

15:37

13:59

4:48

کوتاه

10:21

26:06

2:43

6:24

2:17

12:56

19:42

17:36

5:43

6:38

4:10

کوتاه

4:09

1:56

10:44

6:57

14:34

5:09

4:21

16:40

5:35

6:58

5:46