Question

calcule os valores de :

a)sen 30°

b)sen 60°

c)cos 30°

d)cos 60°

e)tg 30°

Answer 1

sen 30  =   1/2 = 0,5

sen 60 = √3/2 = 0.866...

cos 30 = √3/2 = 0,866...

cos 60 = 1/2 = 0,5

tg 30 =  sen30/cos30 =   1/2 / √3/2    =     0,5/0,866 = 0,577