Respostas

2013-11-09T11:35:01-02:00
Cat op = x
cat adj = y
cos 60º = 1/2
sen 60º = \/3/2

cos 60 = y/6
1/2 = y/6
2y = 6
y = 6/2
y = 3

sen 60 = x/6
x/6 = \/3/2
2x = 6\/3
x = 6\/3/2
x = 3\/3