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Find the third vertex of DeltaABC , if t...

Find the third vertex of `DeltaABC` , if two of its vertices are A (-2,3) , B(4,5) and its centroid is O(1,2) .

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SRISIRI PUBLICATION-IPE:MARCH-2015(TS)-IPE:MARCH-2015(TS) MATHS-1B
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