Auttyrain1977 Auttyrain1977
  • 04-04-2022
  • Mathematics
contestada

Find the missing coordinate.
x = cos t
y = sin t
(-1, [?])

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Nimbus2005
Nimbus2005 Nimbus2005
  • 04-04-2022
You can base this on the unit circle. When x or cos is -1 on the unit circle, y or sin is 0. Since there are no factors changing sine or cosine, they have to be on the unit circle, so we know that sin has to be the 0 corresponding with cos=-1.
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