Posted by Kristin on Sunday, November 13, 2011 at 6:56pm.
find the coordinates of the terminal point on the unit circle determined by t=9pt/7 to two decimal places

huh?  Damon, Sunday, November 13, 2011 at 6:58pm
what does
t=9pt/7
mean?
We need an angle counterclockwise from the x axis in radians or degrees.

trig  Steve, Monday, November 14, 2011 at 11:27am
I think she means 9pi/7
x = cos(9pi/7) = 0.62
y = sin(9pi/7) = 0.78
so, the point is (0.62,0.78)
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