Mathematics (AS & A Level) · Feb / March 2016 · Paper 12 · Question 7

i k j O A B C P 3 3 4 2.4 The diagram shows a pyramid OABC with a horizontal triangular base OAB and vertical height OC. Angles AOB, BOC and AOC are each right angles. Unit vectors i, j and k are parallel to OA, OB and OC respectively, with OA = 4 units, OB = 2.4 units and OC = 3 units. The point P on CA is such that CP = 3 units. −−→

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