Question:
The shortest distance from the point (1, 2, -1) to the surface of the sphere x2 + y2 + z2 = 54 is
The shortest distance from the point (1, 2, -1) to the surface of the sphere x2 + y2 + z2 = 54 is
Updated On: Apr 26, 2024
- (A)
- (B)
- (C)
- (D) 2
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The Correct Option is B
Solution and Explanation
Explanation:
The equation of sphere isThe centre and radius of this sphere are (0,0,0) and ie, Distance between (1,2,-1) and (0,0,0) is Shortest distance between point (1,2,-1) and surface of the sphere
The equation of sphere isThe centre and radius of this sphere are (0,0,0) and ie, Distance between (1,2,-1) and (0,0,0) is Shortest distance between point (1,2,-1) and surface of the sphere
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