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Points equidistant from (1, 2, 3) and (3, 2, -1) satisfy which equation?
Ax - 2z = 0
Bx - 2y = 0
Cx + 2z = 0
D2x - z = 0
Answer & Solution
Correct answer: A. x - 2z = 0
Equating squared distances gives 4x - 8z = 0, which simplifies to x - 2z = 0.
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