Consider a triangular pyramid ABCD the position vector of whose angular points are A(3,0, 1) B(-L 4,11 C(5,23) and D(0,-5, 4) Let G be the point of intersection of the medians of the ABCD. 145. The length of the vector AG is V51 51 (c) 59 (b) 3. (d)

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Q: - 3)² = 81 then, find its ce or a=<3, -1

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