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If the vertices P, Q, R of a triangle PQR are rational points, which of the following points of the triangle POR is (are) always rational point(s) ? |
Answer» `C=((x_1+x_2+x_3)/3,(y_1+y_1+y_3)/3)` C is rational `m_(AB),m_(BC),m(CA) in `Rational H must be rational. D,E,F are rational `(x_1+x_2)/2,(y_1+y_2)/2` Co-ordinate O must be rational `tantheta=7` Option A,C,D are rational. |
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