1.

In the tetrahedron ABCD,A=(1,2,−3) and G(−3,4,5) is the centroid of the tetrahedron. If P is the centroid of the ΔBCD, then AP=

Answer»

In the tetrahedron ABCD,A=(1,2,3) and G(3,4,5) is the centroid of the tetrahedron. If P is the centroid of the ΔBCD, then AP=



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