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Co - ordinate Geometry 3D Geometry

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If the co-ordinates of the points P and Q be (1, –2, 1) and (2, 3, 4) and O be the origin, then

A. Op = OQ

B. Op ⊥ OQ

C. Op || OQ

D. Either a or b

E. None of the above

View Answer

Correct choice: B

Explanation:

a₁a₂ + b₁b₂ + c₁c₂ =0, So Op ⊥ OQ

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Eamcet Mathematics Co - ordinate Geometry 3D Geometry

Eamcet Mathematics
Co - ordinate Geometry 3D Geometry