Podoblasť: Sinus, kosinus, tangens a kotangens (goniometrické funkcie)Časť: AProject ID: 9000032110Accepted: 1Clonable: 0Easy: 1\(\cos \left ( \frac{\pi }{4}\right ) =?\)\(\frac{\sqrt{2}} {2} \)\(1\)\(\sqrt{3}\)\(0\)\(-\frac{\sqrt{2}} {2} \)\(-\sqrt{3}\)
