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Show that the equation x^2−4x+y^2+6y+z^2−4=0 represents a sphere, then find its center and radius.
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Show that the equation x^2−4x+y^2+6y+z^2−4=0 represents a sphere, then find its center and radius.

User Wael Assaf
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Explanation:

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Show that the equation x^2−4x+y^2+6y+z^2−4=0 represents a sphere, then find its center-example-1
User Verybadatthis
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