Answer: A. 12.5
<u>Step-by-step explanation:</u>
R=4
theta=pi/2
x= r cos(theta) = 4 cos(pi/2) = 4(0) = 0
y = r sin(theta) = 4 sin(pi/2) = 4(1) = 4
(0,4) is the answer.
The first answer is right (4,037,880). The calculation is 23 Permutation 5.
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