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OpenStudy (anonymous):
Find the point on the terminal side of θ = -(3pi/4) that has an x coordinate of -1. Show your work for full credit.
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OpenStudy (anonymous):
Great question... The best approach is to draw a picture...
OpenStudy (anonymous):
|dw:1364161840915:dw|
OpenStudy (anonymous):
Alright, so I'm looking for the y-coordinate I assume?
OpenStudy (noelgreco):
That's positive 3pi/4
OpenStudy (anonymous):
You're right... let's make it negative 3pi/4
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OpenStudy (anonymous):
|dw:1364162032750:dw|
OpenStudy (anonymous):
Since the angle is pi/4 --- or 45 degrees, we have a 45-45-90 right triangle...
OpenStudy (anonymous):
|dw:1364162159200:dw|
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