Find the equations of the two spheres that are tangent with equal radii whose centers are (-3,1,2) and (5,-3,6). I don't understand what it means when it says they are tangent with equal radii.
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Originally Posted by tdat1979 Find the equations of the two spheres that are tangent with equal radii whose centers are (-3,1,2) and (5,-3,6). I don't understand what it means when it says they are tangent with equal radii. First, find the distance between the two centers: . If you take and divide it by 2, you'll have two equal radii. Thus, the equation of the spheres are and
24? How did you get = 24? I don't understand where this number came from.
Originally Posted by inca2319 24? How did you get = 24? I don't understand where this number came from. The distance between the two centers is . If they're to have the same radii, it would follow that . Thus, ...
Alright, I understand now. Thanks for the help!
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