October 2018 1 46 Report
Las ecuaciones trigonométricas representan la equivalencia de dos expresiones trigonométricas que contienen una incógnita cuyo valor se pretende averiguar.El valor de x en: 3 sen x - cos2 x - 3 = 0, con ( 0° ≤ x ≤ 360°), es:
Seleccione una:
a. 360°
b. 120°
c. 90°
d. 180°
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