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UPSC NDA I 2023 Mathematics Solved Paper

Consider the following for the next two (02) items that follow :

Let

A(1,-1,2)

and

B(2,1,-1)

be the end points of the diameter of the sphere

x^2+y^2+z^2+2 u x+2 v y+2 w z-1=0

[NDA I 2023]

Question : 62 of 120

Marks: +1, -0

P(x, y, z)

P A^2+P B^2

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