Express-cos-4x-interm-of-cos-x- Tinku Tara June 4, 2023 Trigonometry 0 Comments FacebookTweetPin Question Number 115248 by aye48 last updated on 24/Sep/20 Expresscos4xintermofcosx. Answered by Olaf last updated on 24/Sep/20 cos4x=2cos22x−1cos4x=2(2cos2x−1)2−1cos4x=2(4cos4x−4cos2x+1)−1cos4x=8cos4x−8cos2x+1 Terms of Service Privacy Policy Contact: info@tinkutara.com FacebookTweetPin Post navigation Previous Previous post: f-t-0-t-x-x-dx-Next Next post: solve-1-x-x-2-2-x-x-2- Leave a Reply Cancel replyYour email address will not be published.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.