Question

Trigonometria , quero a resolução completa
1 ) 99pi/4+ tg( -16pi/3)

2) Tg 5pi/3 - 3tg ( -210°)

Answer 1

Ola Gabi 

tg(99pi/4) = tg(99*180/4) = tg(4455) 
tg(4455) = tg(4320 + 135) = tg(135) = -1

tg(-16pi/3) = tg(-16*180/4) = tg(-960)
tg(-960) = tg(1080 - 960) = tg(120) = -√3

1) tg(4455) + tg(-960) = -1 -√3

tg(5pi/3) = tg(300) =  -√3
tg(-210) = tg(360 - 210) = tg(150) = -√3/3 

2) tg(5pi/3) - 3tg(-210) = -√3 + √3 = 0