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(1)lf in triangle ABC , A = (1, 10), cir...

`(1)`lf in triangle `ABC` , `A = (1, 10)`, circumcentre `(-1/3,2/3)` and orthocentre `(11/3,4/3)` then the co-ordinates of mid-point of side opposite to A is `(2)`A line `2x +3y- 1 =0` intersects the three sides `BC, CA and AB` of the triangle `ABC` in `P(x_1, y_1), Q(x_2 y_2), R (x_3, y_3)` respectively, then:

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