1.

If the position vector of three points are a - 2b + 3c, 2a + 3b - 4c, - 7b + 10 c, then the three points are

Answer»

collinear
non-coplanar
non-collinear
None of these

Solution : Let P, Q, R be the GIVEN points. Then, we have QR =- 2PQ HENCE, P Q and R are collinear.


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