Respuesta:
tg4x.cotg60°.(1) =1 ---------- sen30°cosec30°= 1
tg4x.cotg60°=1
entonces :
4x= 60°
x=15°
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Respuesta:
tg4x.cotg60°.(1) =1 ---------- sen30°cosec30°= 1
tg4x.cotg60°=1
entonces :
4x= 60°
x=15°