The coordinate of two points P and Q are `(x_(1),y_(1))` and `(x_(2),y_(2))` and O is the origin. If the circles are described on OP and OQ as diameters, then the length of their common chord is

The coordinates of two points Pa n dQ are (x_1,y_1)a n d(x_2,y_2)a n dO is the origin. If the circles are described on O Pa n dO Q as diameters, then the length of their common chord is (|x_1y_2+x_2y_1|)/(P Q) (b) (|x_1y_2-x_2y_1|)/(P Q) (|x_1x_2+y_1y_2|)/(P Q) (d) (|x_1x_2-y_1y_2|)/(P Q)

The coordinates of two points Pa n dQ are (x_1,y_1)a n d(x_2,y_2)a n dO is the origin. If the circles are described on O Pa n dO Q as diameters, then the length of their common chord is (a) (|x_1y_2+x_2y_1|)/(P Q) (b) (|x_1y_2-x_2y_1|)/(P Q) (|x_1x_2+y_1y_2|)/(P Q) (d) (|x_1x_2-y_1y_2|)/(P Q)

The coordinates of two points Pa n dQ are (x_1,y_1)a n d(x_2,y_2)a n dO is the origin. If the circles are described on O Pa n dO Q as diameters, then the length of their common chord is (a) (|x_1y_2+x_2y_1|)/(P Q) (b) (|x_1y_2-x_2y_1|)/(P Q) (|x_1x_2+y_1y_2|)/(P Q) (d) (|x_1x_2-y_1y_2|)/(P Q)

The coordinates of two points Pa n dQ are (x_1,y_1)a n d(x_2,y_2)a n dO is the origin. If the circles are described on O Pa n dO Q as diameters, then the length of their common chord is (|x_1y_2+x_2y_1|)/(P Q) (b) (|x_1y_2-x_2y_1|)/(P Q) (|x_1x_2+y_1y_2|)/(P Q) (d) (|x_1x_2-y_1y_2|)/(P Q)

The co-ordinates of two points P and Q are (x_1,y_1) and (x_2,y_2) and O is the origin. If circles be described on OP and OQ as diameters then length of their common chord is

If the co-ordinates of the points P and Q are (1,-2,1)and(2,3,4) and O is the origin, then: a) OP=OQ b) OP_|_OQ c) OP||OQ d)OP and OQ intersect at an angle of 45^(@)

If O is the origin and P(x_(1),y_(1)), Q(x_(2),y_(2)) are two points then OPxOQ sin angle POQ=

If O is the origin and P(x_(1),y_(1)), Q(x_(2),y_(2)) are two points then POxxOQ sin angle POQ=

Let A(x_(1), y_(1))" and "B(x_(2), y_(2)) be two points on the parabola y^(2)=4ax . If the circle with chord AB as a diameter touches the parabola, then |y_(1)-y_(2)|=