Mathematics, 05.08.2021 02:30 hedaya

Si α es un ángulo en el segundo cuadrante tal que cos α = −8/15 y está en el segundo cuadrante, determine sin 2α, cos 2α y tan 2α

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Si α es un ángulo en el segundo cuadrante tal que cos α = −8/15 y está en el segundo cuadrante, det...

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