Respostas

2013-07-11T12:32:29-03:00
Tg150°= -raiz de 3/3

tg60°= raiz de 3

tg0°=0

cotg 90°= 0

cotg 270= 0

sec 150°= (-2raiz de 3)/3

sec 210= (-2raiz de 3)/3

cossec 225= - raiz de 2

cossec 300°= (2raiz de 3)/3
2 3 2