A. 1

B. 2

C. -1

D. -2

The ordinate PN of P(a cos θ, b sin θ) on the ellipse x^{2}/a^{2}+y^{2}/b^{2}=1 meets the auxiliary circle at Q,. The locus of the point of intersection of normal at P and Q is

The locus of the middle point of chords of the ellipse x^{2}/a^{2}+y^{2}/b^{2}=1 whose pole lies on the auxiliary circle is

The midpoint of a chord 4x+5y-13=0 of the ellipse 2x^{2}+5y^{2}=20 is

The equation of the chord of the ellipse 2x^{2}+3y^{2}=6 having (1, -1) as its midpoint is

The locus of the poles of chords of the ellipse x^{2}/a^{2}+y^{2}/b^{2}=1 which touch The locus of the poles w.r.t the ellipse x^{2}/α^{2}+y^{2}/β^{2}=1 is