Sinusrechner — Formel

Sine Function

Definition

In a right triangle, sin(angle) = opposite / hypotenuse.

On the unit circle, sin(angle) is the y-coordinate of the point at that angle.

Key Values

Anglesin 0°0 30°0.5 45°√2/2 ≈ 0.7071 60°√3/2 ≈ 0.8660 90°1

Lösungsbeispiel

Calculate sin(30°).

  1. 30° in radians = 30 × pi/180 = pi/6 ≈ 0.5236
  2. sin(30°) = 0.5
  3. cos(30°) = √3/2 ≈ 0.8660
  4. tan(30°) = 1/√3 ≈ 0.5774