Find the exact value Posted byadmin October 17, 2017 12.20K viewsOctober 23, 2017trigonometry 1 admin60 October 18, 2017 0 Comments 1 Answer ActiveVotedNewestOldest 0 admin60 Posted October 23, 2017 0 Comments Used Half-angle formula for sign. Attachments 729DB5AF-6AB8-453D-BB77-D25E38FECEBB.jpeg You are viewing 1 out of 1 answers, click here to view all answers. Register or Login