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If the vertices of a triangle `PQR` are rational points, then which of the following points of this triangle may not be rational -(a) Centroid (b) Incenter(c) Circumcenter (d) Orthocenter |
Answer» G is rational I may not be rational `x^2+y^2+2gx+2fy+c=0` g and f are rational, circumcenter of ration. `(y-y_2)/(x-x_2)=(y_3-y_2)/(x_3-x_2)-(1)` `(y-y_1)/(x-x_1)=(y_3-y_2)/(x_3-x_2)-(2)` From 1 and 2 orthocenter is a rational. |
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