iger `P(theta) and Q(pi/2 +theta)` are two points on the ellipse `x^2/a^2+y^@/b^2=1`, locus ofmid point of PQ is

If P(theta) and Q((pi)/(2)+theta) are two points on the ellipse (x^(2))/(9)+(y^(2))/(4)=1 then find the locus of midpoint of PQ

P_1(theta_1) and P_2(theta_2) are two points on the ellipse x^2/a^2+y^2/b^2=1 such that tan theta_1 tan theta_2 = (-a^2)/b^2 . The chord joining P_1 and P_2 of the ellipse subtends a right angle at the

If P ( theta ) " and " Q (phi ) are two points on an ellipse (x^(2))/(a^(2)) + (y^(2))/(b^(2)) = 1 , such that chord PQ subtance a right angle at its centre 'C' , then (1)/(CP^(2)) + (1) /(CQ^(2)) =

If P(theta),Q(theta+(pi)/(2)) are two points on the ellipse (x^(2))/(a^(2))+(y^(2))/(b^(2))=1 and a is the angle between normals at P and Q, then

let P be the point (1,0) and Q be a point on the locus y^(2)=8x. The locus of the midpoint of PQ is

Let P(a sec theta,b tan theta) and Q(a sec c phi,b tan phi) (where theta+phi=(pi)/(2) be two points on the hyperbola (x^(2))/(a^(2))-(y^(2))/(b^(2))=1 If (h,k) is the point of intersection of the normals at P and Q then k is equal to (A) (a^(2)+b^(2))/(a)(B)-((a^(2)+b^(2))/(a))( C) (a^(2)+b^(2))/(b)(D)-((a^(2)+b^(2))/(b))

If P is the point (1,0) and Q lies on the parabola y^(2)=36x , then the locus of the mid point of PQ is :