If the co-ordinates of two point A and B are `(sqrt(7),0)` and `(-sqrt(7),0)` respectively and P is any point on the curve `9x^2+16y^2=144`, then find `AP+PB`.

If the co-ordinates of points P and Q are sqrt2 and -sqrt2 respectively, then d(P,Q) =

Co-ordinates of points P and Q are (-2,0) and (2,0) respectively .Find d(P,Q) .

Find the co-ordinates of the point on the curve sqrt(x)+sqrt(y)=4 at which tangent is equally inclined to the axes.

Find the sum of the focal distances of any point on the ellipse 9x^2+16 y^2=144.

Find the sum of the focal distances of any point on the ellipse 9x^2+16 y^2=144.

Find the sum of the focal distances of any point on the ellipse 9x^2+16 y^2=144.

Find the sum of the focal distances of any point on the ellipse 9x^2+16 y^2=144.

An electric charge 10^(-3) muC is placed at the origin (0, 0) of X-Y co-ordinate system. Two points is A and B are situated at (sqrt(2),sqrt(2)) and (2, 0) respectively. The potential difference between the points A and B ,will be ......

(8,3sqrt3) is a point on the hyperbola 9x^(2) - 16y^(2) = 144.

Find the sum of the focal distances of any point on the ellipse 9x^(2)+16y^(2)=144