Posted by Anne on Monday, September 17, 2012 at 4:03pm.
1. Find the polar coordinates of (8, –8) for r > 0.
2.Find the rectangular coordinates of (9, 150°)

Precalc  Steve, Monday, September 17, 2012 at 4:12pm
(r,θ) = (8√2,315°) or ((8√2,45°)
(x,y) = (9cos150°,9sin150°) = (9/2, 9/2 √3)

Precalc  Steve, Monday, September 17, 2012 at 4:13pm
dang  gotta stop typing too fast:
(x,y) = (9cos150°,9sin150°) = (9/2 √3, 9/2)
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