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y=x+2 is any tangent to the parabola y^2...

`y=x+2` is any tangent to the parabola `y^2=8xdot` The point `P` on this tangent is such that the other tangent from it which is perpendicular to it is (a)`(2,4)` (b) `(-2,0)` (c)`(-1,1)` (d) `(2,0)`

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