Answer:
A
Step-by-step explanation:
5pi/4 is in Q III so BOTH rectangular coordinates will be NEGATIVE
x = 4 cos (5pi/4) y = 4sin (5pi/4)
x = -4 sqrt (2)/2 y = - 4 sqrt (2) /2
x = - 2 sqrt 2 y = -2 sqrt 2
