lecture02 - Formula Page Wednesday, January 26, 2005 2:46...

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A • B = | A |*| B | cos (σ) cos (σ) = cos (-σ) sin (σ) = - sin (-σ) Law of Cosines: | A |² + | B |² - 2| A |*| B | cos σ = |( B - A )|² (x - 3)² + (y + 5)² = 49 CIRCLE centered at 3, -5 with a radius of 7.
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lecture02 - Formula Page Wednesday, January 26, 2005 2:46...

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