Question

determine o valor seno cosseno e tangente de csda arco 300graus

Answer 1

sen 300º= -sen(360-300)=-sen 60º=$\sqrt \frac{-3}{2}$
cos 300º= cos(360-300)= cos 60º= $\frac{1}{2}$
tg 300º= -tg(360-300)= -tg 60º= $\sqrt{3}$