Question

Use the information given about the angle θ, 0≤θ≤2π, to find the exact value of the indicated trigonometric function.

cscθ=-5/2, tanθ>0, find cos θ/2.

Answer 1

are you Vietnamese?

Answer 2

csc=hyp/opp 1/opp/hyp = 1/sin= 1/-5/2 or 2/-5
us pythagorean to adjacent side

hyp^2 - Opp^2= adj^2
or
sqrt(nyp^2-opp^2) = adj

Answer 3

@Loser66: yes :)
@zpupster: thanks

Answer 4

Can you read Vietnamese? Chi la nguoi Viet day. Neu em can hoi gi, neu biet chi se uu tien cho. hehehe

Answer 5

You’re Welcome = Không Có Chi
No Problem = Không Sao