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Show that the points (4,2), (7,5) and (9,7) are collinear |
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Answer» 1/2{4(5-7)+7(7-2)+9(2-5)1/2{-8+35-27}1/2×0=0 1/2[4(5-7)+7(7-2)+9(2-5)]=0 |
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