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5369855 Group Title

How is the equation of a sphere with center at the origin similar to, and different from, the equation of a circle with center at the origin?

  • 3 years ago
  • 3 years ago

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  1. jobh8810 Group Title
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    A sphere is just a 3D or 3 dimension version of a circle. So for a circle with center in the origin you have\[x ^{2}+y ^{2}=R ^{2}\] where R is the radius of the circle. Therefore for a sphere, we just add the 3D component or in mathematical terms, the z-axis which will give you:\[x ^{2}+y ^{2}+z ^{2}=R ^{2}\]. That's it. Peace, Love and Happiness from Puerto Rico

    • 3 years ago
  2. serpently Group Title
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    The z^2 as shown above makes the graph 3 dimensional and its sits on (0,0,0)

    • 3 years ago
  3. 5369855 Group Title
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    Thank you!

    • 3 years ago
  4. 5369855 Group Title
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    I understand it now :) Thanks for your help :)

    • 3 years ago
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