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Most Important Selected Qs for JEE AdvancedMathematicsThree Dimensional Geometry

Paragraph: Read the following write up carefully and answer the following questions: Consider a three dimensional Cartesian system with origin at O and three rectangular coordinate axes x , y and z -axis. Suppose that the distance between two points P and Q in the space having their coordinates ( x ₁, y ₁, z ₁ ) and ( x ₂, y ₂, z ₂ ) respectively be defined by the following formula d(P, Q)= |x₂-x₁ |+ |y₂-y₁ |+ |z₂-z₁

Options

  1. Aa
  2. B2 a
  3. C2 a 3
  4. D4 a 3

Correct answer

A. a

Step-by-step solution

The maximum value of d(O, P)= circumradius of sphere =a .

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