Trigonometric identities, no unit circles required (PDF) Oct 15, 2017 11:15:24 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Tiago on Oct 15, 2017 11:15:24 GMT Trigonometric identities, no unit circles required...Deriving trigonometric identities without t....pdf (83.44 KB)