Kosayn oo raadiyaan ah

Goobada, kosayntu waa ballaca barta, taas oo ah inta ay midigta u jirto. Raadiyaan ahaan: second F, set up, 0, 1. Si aad u hesho cos⁡π4\displaystyle \cos\frac{\pi}{4}, riix kosayn, pi, badhanka jajabka, oo qor 4. Riix le'eg: 22\displaystyle \dfrac{\sqrt{2}}{2}. CHANGE wuxuu bixiyaa: 0.707106781.