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IgorC [24]
3 years ago
13

Find an equation of the sphere that passes through the origin and whose center is (1, -7, 9

Mathematics
1 answer:
AfilCa [17]3 years ago
6 0
The distance between any point on the sphere and its center is the radius. The origin is on the sphere, so the radius r satisfies

r^2=(1-0)^2+(-7-0)^2+(9-0)^2=131

This means the equation of the circle is

(x-1)^2+(y+7)^2+(z-9)^2=131
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