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Find the minimal distance between any point on the sphere

  1. Nov 7, 2008 #1
    How can we find the minimal distance between any point on the sphere whose centre is 2,1,3 and radius is 1 and any point on the sphere centred at -3,2,4 and radius is 4?


    is there any formula for finding this minimum distance ?
     
  2. jcsd
  3. Nov 7, 2008 #2
    Re: spheres

    find the distance between the centres, and subtract the sum of radii of the spheres....
     
  4. Nov 7, 2008 #3
    Re: spheres

    thnx aniketp...that was helpful...i got my answer
     
  5. Nov 7, 2008 #4
    Re: spheres

    no problem, but i hope you understood WHY this works.
     
  6. Nov 7, 2008 #5
    Re: spheres

    well...yes...i have a math exam tomorrow....have to finish a LOT of things
     
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