how-can-demonstred-that-cos-2x-sin-2x-1-cos-2-x- Tinku Tara June 3, 2023 Geometry 0 Comments FacebookTweetPin Question Number 11403 by JAZAR last updated on 24/Mar/17 howcandemonstredthatcos(2x)−sin(2x)−1=−cos2x Commented by sm3l2996 last updated on 24/Mar/17 Ithinkthatequationisnotcorrectbecausecos(2π)−sin(2π)−1=0≠−cos2(π) Terms of Service Privacy Policy Contact: info@tinkutara.com FacebookTweetPin Post navigation Previous Previous post: Question-142475Next Next post: Find-the-magnitude-of-two-forces-such-that-if-they-act-at-right-angle-their-resultant-is-10-and-13-if-they-act-at-an-angle-of-60- Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Save my name, email, and website in this browser for the next time I comment.