If `P(x_1,y_1),Q(x_2,y_2),R(x_3,y_3) and S(x_4,y_4)` are four concyclic points on the rectangular hyperbola ) and `xy = c^2` , then coordinates of the orthocentre ofthe triangle `PQR` is

If P(x_1,y_1),Q(x_2,y_2),R(x_3,y_3) and S(x_4,y_4) are four concyclic points on the rectangular hyperbola and xy = c^2 , then find coordinates of the orthocentre of the triangle PQR

If P(x_1, y_1), Q(x_2, y_2), R(x_3, y_3) and S(x_4, y_4) are 4 concyclic points on the rectangular hyperbola xy=c^(2) the coordinates of the orthocentre of the trianglePQR are

Find the sum of coordinates of the orthocentre of the triangle whose sides are x=3,y=4 and 3x+4y=6

if the normals at (x_(1),y_(1)),(x_(2),y_(2)),(x_(3),y_(3)),(x_(4),y_(4)) on the rectangular hyperbola xy=c^(2) meet at the point (alpha,beta). Then The value of (x_(1),+x_(2)+x_(3)+x_(4)) is

If the normals at four points P(x_(i)y_(i)),i=1,2,3,4 on the rectangular hyperbola xy=c^(2), meet at the point Q(h,k) prove that

Lines x+y=1 and 3y=x+3 intersect the ellipse x^(2)+9y^(2)=9 at the points P,Q,R. the area of the triangles PQR is

The equation of the chord joining the points (x_1,y_1) and (x_2,y_2) on the rectangular hyperbola xy = c^2 is :