SOLUTION: How you will find the coordinates of P(−9π/2) if you know the coordinates of P(π/2)?

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Question 1188401: How you will find the coordinates of P(−9π/2) if you know the coordinates
of P(π/2)?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
How you will find the coordinates of P(−9π/2) if you know the coordinates
of P(π/2)?
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Add 2pi repeatedly
-9pi/2 + 2pi = -5pi/2
---> -pi/2
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-9pi/2 is coincident with -pi/2
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If the coordinates of P(pi/2) are (x,y) --> P(-pi/2) is (-x,-y)