2 sen t - cos t - 1 = 0?
2 sen t - cos t - 1 = 0.
En resumen
- 1 - cos(t) + 2 sin(t) = 0 x = tan(t / 2).
Mejor respuesta
- 1 - cos(t) + 2 sin(t) = 0 x = tan(t / 2).
Sin(t) = (2 x) / (x ^ 2 + 1)
cos(t) = (1 - x ^ 2) / (x ^ 2 + 1) : - 1 + 1 / ( - 1 - x ^ 2) + (4 x) / (x ^ 2 + 1) + x ^ 2 / (x ^ 2 + 1) = 0 - 1 + 1 / ( - 1 - x ^ 2) + (4 x) / (x ^ 2 + 1) + x ^ 2 / (x ^ 2 + 1) x ^ 2 + 1 :
(2 (2 x - 1)) / (x ^ 2 + 1) = 0
(2 x - 1) / (x ^ 2 + 1) = 0
2 x - 1 = 0
2 x = 1
x = 1 / 2
tan(t / 2) = 1 / 2 t = 2 tan ^ ( - 1)(1 / 2) + 2 * pi * n.