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