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January 25, 2015

January 25, 2015

Posted by **Anne** on Monday, September 17, 2012 at 4:03pm.

2.Find the rectangular coordinates of (9, 150°)

- Pre-calc -
**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)

- Pre-calc -
**Steve**, Monday, September 17, 2012 at 4:13pmdang - gotta stop typing too fast:

(x,y) = (9cos150°,9sin150°) = (-9/2 √3, 9/2)

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