Respuesta :
tan = opposite leg/adjacent leg. it can also be written as sin/cos. to see why, since sin = opposite leg/hypotenuse and cos = adjacent leg/hypotenuse, when you divide the 2 you get:
sin/cos = (opp/hyp)(hyp/adj) = opp/adj and therefore this ratio is also tan.
sin/cos = (opp/hyp)(hyp/adj) = opp/adj and therefore this ratio is also tan.