Question

Given that cosθ=0
, find the coordinates of the point where the terminal side of θ
intersects the unit circle if θ
is an obtuse angle.(1 point)
Responses

(1, 0)

left parenthesis 1 comma space 0 right parenthesis

(0, −1)

left parenthesis 0 comma space negative 1 right parenthesis

(−1, 0)

left parenthesis negative 1 comma space 0 right parenthesis

(0, 1)

Answer 1

cos θ is the x-coordinate on the unit circle. cos θ = 0 gives (0,1) or (0,−1). An obtuse angle (between 90° and 180°) has positive y, so the point is (0,1).