1.

If the normal to a parabola y2=4ax at P meets the curve again at Q and if PQ and the normal at Q makes angle α and β, respectively with the x-axis then tanα(tanα+tanβ) has the value equal to

Answer»

If the normal to a parabola y2=4ax at P meets the curve again at Q and if PQ and the normal at Q makes angle α and β, respectively with the x-axis then tanα(tanα+tanβ) has the value equal to



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