verifying trig identities hard

24:19

2:57

1:10

7:16

10:48

5:22

6:03

16:48

7:01

16:56

13:33

19:36

17:48

3:14

4:40

14:55

28:40

23:57

1:33:24

24:00

24:01

23:58

23:53

24:00

23:56

21:01

23:57

23:56

23:55

3:51

3:16

23:53

2:30

4:35

4:40

2:43

2:41

1:40

3:36

3:04