Question

2)Determine o valor de Tag 1845° ; Cos 1740° e Sen 1680°
a) () 1:72 e 3/2
b) ()-1;-% e 3/2
c) ( ) ; 3/2 e 1
d) ( ) 3/2 ; 1 e 12

Answer 1

Resposta:

a)

1845/360 = 5,125

1845 = 1800 + 45

tg(45) = 1

b)

1740 - 4*360 = 300

cos(300) = cos(360 - 60) = cos(60) = 1/2

c)

1680 - 4*360 = 240

sen(240) = sen(360 - 120) = -sen(120) =  -√3/2