s07wk01 - Math 23 Spring 2007 B Dodson X Li 1 Course Info 2...

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Math 23, Spring 2007 B. Dodson X. Li 1. Course Info 2. Week 1 Homework: 12.1: 3-Space, Distance Note: weekly slides (these) will be posted on blackboard. daily slides (larger font, more pages) may be found on bad0/courses Problem 12.1.15: Show that the equation x 2 + y 2 + z 2 - 6 x + 4 y - 2 z = 11 represents a sphere, and find its center and radius. Solution: ( x - a ) 2 = x 2

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