rpta: -sen 60 = -√3/2
solución:
sen1320= Sen(3.360+240) = sen240= Sen(180+60) = -sen60 = -√3/2.
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Verified answer
rpta: -sen 60 = -√3/2
solución:
sen1320= Sen(3.360+240) = sen240= Sen(180+60) = -sen60 = -√3/2.