Can someone explain???

Question

following is the work for using the unit circle in find the exact value of sim 17π/3

a)which step has the first error?

b)explain the error

1)find the coterminal angle

17π/3-2π=5π/3

2) using the unit circle, the point at 5π/3 is (1/2,-sqart3/2)

3)because sin is the y value, sin17π/3=-sqart/2

Answer 1

a) Every step contains an error.

b) It looks like carelessness, as seen by so many typos.

1) Should be

17π/3 - 4π = 5π/3

2) Should be

Using the unit circle, the point at 5π/3 is (-1/2, -√3/2)

3) Should be

Because sin is the y value, sin17π/3 = -√3/2