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Find the equation of a sphere whose c...

Find the equation of a sphere whose centre is `(3,1,2)` radius is `5.`

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The equation of the sphere whose centre is (3, 1, 2) and radius is 5 is
`" "(x-3)^(2)+(y-1)^(2)+(z-2)^(2)=5^(2)`
or `" "x^(2)+y^(2)+z^(2)-6x-2y-4z-11=0`
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