Finding exact values of sin and cos. GCSE, GCSE Higher, GCSE Maths, Trigonometry, You tube video Add comments Jun 272017 The exact values for sin and cos 0, 30, 45, 60 and 90 GCSE Maths revision tutorial video. For the full list of videos and more revision resources visit www.mathsgenie.co.uk. Leave a Reply Cancel replyYou must be logged in to post a comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.