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Mathematics, 14.07.2020 19:01 jen12abc82

Sean los ángulos a y B, donde la suma de la mitad de a mas la tercera parte de B es igual a 15. calcula el doble del cociente del seno de 3a y el coseno de 2B. Urgente pls a es alpha y B es beta por si acaso

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Sean los ángulos a y B, donde la suma de la mitad de a mas la tercera parte de B es igual a 15. calc...
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