Question

if y^2=3x then equation of focal chord​

Answer 1

Answer:

If one end of the focal chord of parabola is (at2, 2at), then other end will be(at2,-2at) and length of chord =a(t+1t)2. The focal chord of parabola y2 = 4ax making an angleα with the x-axis is of length 4a cosec2 α and perpendicular on it from the vertex is a sinα.