(cos^2 60 - sin^2 60)/(2sin 60 tan 60)=....

Name: (cos^2 60 - sin^2 60)/(2sin 60 tan 60)=....
Uploaded: 2024-03-15T17:01:43
Duration: PT1M25.7667S
Description: (cos^2 60 - sin^2 60)/(2sin 60 tan 60)=....