demo1
Valeurs remarquables des sinus et cosinus ⟳
✔ sin (5π/6) = ➡ 1/2
✔ cos (-π/3) = ➡ 1/2
✔ sin (5π/2) = ➡ 1
✔ sin (4π/3) = ➡ -√3 / 2
Valeurs remarquables des sinus et cosinus ⟳
✔ sin (5π/6) = ➡ 1/2
✔ cos (-π/3) = ➡ 1/2
✔ sin (5π/2) = ➡ 1
✔ sin (4π/3) = ➡ -√3 / 2