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A) Show that the equation represents a sphere, find its center and radius: x2+y2+z2-2x-4y+8z=15 B) Find...

A) Show that the equation represents a sphere, find its center and radius: x2+y2+z2-2x-4y+8z=15

B) Find the equation of the sphere if one of its diameters is between the points (2,0,0) and (0,6,0)

C) Describe in words or with a drawing the region represented by x2+y2=9, z= -2

D) Find the length of the sides of the triangle that passes through the following points and determine if it is a rectangle, isosceles, equilateral: (5,3,4), (7,1,3), (3,5,3)
Math   Calculus   
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