Tabla de valores de las 6 funciones trigonométricas seno (x), coseno (x), tangente (x), cotangente (x), secante (x) y cosecante (x) para ángulos especiales.
NOTA: La letra U significa indefinido.
| \(\theta\) | \(0\) | \(\dfrac{\pi}{6}\) | \(\dfrac{\pi}{4}\) | \(\dfrac{\pi}{3}\) | \(\dfrac{\pi}{2}\) |
|---|---|---|---|---|---|
| \(0^\circ\) | \(30^\circ\) | \(45^\circ\) | \(60^\circ\) | \(90^\circ\) | |
| \(\sin\theta\) | \(0\) | \(\dfrac{1}{2}\) | \(\dfrac{\sqrt{2}}{2}\) | \(\dfrac{\sqrt{3}}{2}\) | \(1\) |
| \(\cos\theta\) | \(1\) | \(\dfrac{\sqrt{3}}{2}\) | \(\dfrac{\sqrt{2}}{2}\) | \(\dfrac{1}{2}\) | \(0\) |
| \(\tan\theta\) | \(0\) | \(\dfrac{\sqrt{3}}{3}\) | \(1\) | \(\sqrt{3}\) | \(\text{U}\) |
| \(\csc\theta\) | \(\text{U}\) | \(2\) | \(\sqrt{2}\) | \(\dfrac{2}{\sqrt{3}}\) | \(1\) |
| \(\sec\theta\) | \(1\) | \(\dfrac{2}{\sqrt{3}}\) | \(\sqrt{2}\) | \(2\) | \(\text{U}\) |
| \(\cot\theta\) | \(\text{U}\) | \(\sqrt{3}\) | \(1\) | \(\dfrac{\sqrt{3}}{3}\) | \(0\) |