The normal to a curve at meets the axis at . If the distance of from the origin is twice the abscissa of , then the curve is a
As we learnt in
Slope of a line -
Slope of line joining A(x1,y1) and B(x2,y2) .
If slope of tangent =
We get as equation of normal.
If normal meets x-axis again, we get:
Distance of QG = 2 (abscissa of P)
which is a Hyperbola.
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