cos⁡ 45° = \[\frac{\sqrt{3}}{2}\] \[\frac{\sqrt{2}}{2}\] \[\frac{1}{2}\]
Задание

cos⁡ 45° =

  • \[\frac{\sqrt{3}}{2}\]

  • \[\frac{\sqrt{2}}{2}\]

  • \[\frac{1}{2}\]