Respostas

2013-06-10T21:55:12-03:00

a- sen x = 1/2 > sen x= 30 graus

 

b- cos x = 1/2 > cos x = 60 graus

 

c- tg x = raiz de 3 > tg x = 60 graus

 

d- sen x = raiz de 3/2 > sen x = 60 graus

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