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The coordinates of the mid points of sid...

The coordinates of the mid points of sides AB, BC and CA of ` A B C` are `D(1,2,-3),\ E(3,0,1)a n d\ F(-1,1,-4)` respectively. Write the coordinates of its centroid.

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RD SHARMA ENGLISH-INTRODUCTIONS TO 3-D COORDINATE GEOMETRY-All Questions
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