If θ is an angle in standard position and if the given point P is located on the terminal side of θ and on the unit circle, find sinθ and cosθ. LABEL EACH ANSWER WITH THE RELATED QUESTION LETTER.

a) P(0,−1)
b) P(−23,5√3)
c) P(16,−35√6)
d) P is on the terminal side of θ = 120°

e) P is on the terminal side of θ = 5π4

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.