Question

Find the center C and the radius a for the spheres in Exercises 51–52.

51. x2 + y2 + z2 - 6y + 8z = 0

52. 2x2 + 2y2 + 2z2 + x + y + z = 9

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Elementary Geometry For College Students, 7e

7th Edition

ISBN: 9781337614085

Author: Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher: Cengage,

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