In the euclidean 3-dimensional space with a fixed cartesian system, let
us consider the sphere and the plane of equations respectively Which of the following statements is true?

Question

In the euclidean 3-dimensional space with a fixed cartesian system, let 
us consider the sphere    and the plane    of equations respectively  Which of the following statements is true?

Answer

.

Answer

The distance of the center of    from the plane    is equal to   .

Answer

is tangent to   .

Answer

The radius of the circumference    is equal to   .

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In the euclidean 3-dimensional space with a fixed cartesian system, let us cons...

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