A-LevelMathematicsVectorsMay/June 2010Paper 1 Q56 Marks
Relative to an origin O, the position vectors of the points A and B are given by OA = (-2/3) and OB = (4/p) (i) Find the value of p for which OA is perpendicular to OB. (ii) Find the values of p for which the magnitude of AB is 7.
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