(x-x0)²+(y-y0)²+(z-z0)² = R²
O(5; 3; -2)
R = √4 = 2
S сферы = 4πR² = 16π
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(x-x0)²+(y-y0)²+(z-z0)² = R²
O(5; 3; -2)
R = √4 = 2
S сферы = 4πR² = 16π