[" If two chords drawn from the point "A(4,4)" to the parabola "x^(2)=4y" are bisected by line "y=mx," th "],[" interval in which "m" lies is "]

If two chords drawn from the point A(4,4) to the parabola x^(2)=4y are bisected by the line y=mx, the interval in which m lies is (a) (-2sqrt(2),2sqrt(2))( b) (-oo,-sqrt(2))uu(sqrt(2),oo)(c)(-oo,-2sqrt(2)-2)uu(2sqrt(2)-2,oo)(d) none of these

If two chords drawn from the point A(4,4) to the parabola x^2=4y are bisected by the line y=m x , the interval in which m lies is (-2sqrt(2),2sqrt(2)) (-oo,-sqrt(2))uu(sqrt(2),oo) (-oo,-2sqrt(2)-2)uu(2sqrt(2)-2,oo) none of these

If two chords drawn from the point A(4,4) to the parabola x^2=4y are bisected by the line y=m x , the interval in which m lies is (a) (-2sqrt(2),2sqrt(2)) (b) (-oo,-sqrt(2))uu(sqrt(2),oo) (c) (-oo,-2sqrt(2)-2)uu(2sqrt(2)-2,oo) (d) none of these

If two chords drawn from the point A(4,4) to the parabola x^2=4y are bisected by the line y=m x , the interval in which m lies is (a) (-2sqrt(2),2sqrt(2)) (b) (-oo,-sqrt(2))uu(sqrt(2),oo) (c) (-oo,-2sqrt(2)-2)uu(2sqrt(2)-2,oo) (d) none of these

If two chords drawn from the point A(4,4) to the parabola x^2=4y are bisected by the line y=m x , the interval in which m lies is (-2sqrt(2),2sqrt(2)) (-oo,-sqrt(2))uu(sqrt(2),oo) (-oo,-2sqrt(2)-2)uu(2sqrt(2)-2,oo) none of these

If two chords drawn from the point A(4,4) to the parabola x^2=4y are bisected by the line y=m x , the interval in which m lies is (-2sqrt(2),2sqrt(2)) (-oo,-sqrt(2))uu(sqrt(2),oo) (-oo,-2sqrt(2)-2)uu(2sqrt(2)-2,oo) none of these

Length of the chord of contact drawn from the point (-3,2) to the parabola y^(2)=4x is

The number of normals drawn from the point (6,-8) to the parabola y^(2)-12y-4x+4=0 is

The number of normals drawn from the point (6, -8) to the parabola y^2 - 12y - 4x + 4 = 0 is