Prove-that-4sin-2-36-1-2-cos72- Tinku Tara June 3, 2023 None 0 Comments FacebookTweetPin Question Number 7187 by 314159 last updated on 15/Aug/16 $${Prove}\:{that}\:\frac{\sqrt{\mathrm{4}{sin}^{\mathrm{2}} \mathrm{36}−\mathrm{1}}}{\mathrm{2}}={cos}\mathrm{72}. \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com FacebookTweetPin Post navigation Previous Previous post: given-that-a-b-mod-n-show-that-a-k-b-k-mod-n-Next Next post: hi-calculate-A-x-2-y-2-dxdy-with-A-x-2-a-2-y-2-b-2-1- Leave a Reply Cancel replyYour email address will not be published.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.