Let A(1, -1, 2) and B(2, 1, -1) be endpoints of a diameter of the sphere x² + y² + z² + 2ux + 2vy + 2wz – 1 = 0
If P(x, y, z) is any point on the sphere, then what is PA² + PB² equal to?
Mathematics
2023
NDA Mathematics 2023
NDA 2023
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