Find the co-ordinate of centre of circle,which co-ordinate of diameter are respectively (a,a) and (-a,-a)

Find the missing co-ordinate

Find the co-ordinates of centre of mass of the lamina shown in figure

Find the co-ordinates of centre of mass of the lamina shown in figure

Find the co-ordinates of centre of mass of the lamina shown in figure

Find the equation of a circle, the co-ordinates of the ends of whose diameter are (-1,-3) and (2,5)

Find the polar co-ordinates of points whose Cartesian co-ordinates are:(5,5)

Point P is the centre of the circle and AB is a diameter.Find the co-ordinates of point B if co-ordinates of point A and P are (2,-3) and (-2,0) respectively.

(a) Find the polar co-ordinates of a point Cartesian co-ordinates are (-1,1) .

Find the equation of the circle, the co-ordinates of the end points of whose diameter are (3, 4) and (- 3, - 4).