Question 87393: True or false, the following polar coordinates are multiple representations of the same point: (-5, 7pi/4)(-5, 5pi/4)
i say false but i really dont know....i also dont know if this should be posted somewhere else
Answer by longjonsilver(2297)   (Show Source):
You can put this solution on YOUR website! Lets think about "normal" Cartesian coordinates like (1,2) and (2,4) and (3,2).
Of these, the first 2 pairs are scalar multiples of each other since multiplying (1,2) by 2 gives the (2,4).
Now looking at your example, the x coordinates are both -5 so we would expect the y coordinates to be the same too if one pair was a scalar multiple (multiple would be 1 in this case) of the other... but the y coordinates are different.
So, i would say the 2 pairs are not multpiles of each other, so FALSE
cheers
Jon
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