Harmonic conjugate of the point (5, 13) with respect to `(2,-5)` and `(3,1)` is `(1,(13)/5)` (b) `((13)/5,1)` `((13)/5,7/5)` (d) `(-7/5,(13)/5)`

2 3/5-:5/7=\ (a) (13)/7 (b) (13)/(25) (c) (91)/(25) (d) (25)/(91)

2 3/5-:5/7=\ (13)/7 (b) (13)/(25) (91)/(25) (d) (25)/(91)

Show that the point A(1,-1,3), B(2,-4,5) and C(5,-13,11) are collinear.

Show that the point A (1,-1,3), B ( 2,-4,5) and C ( 5,-13,11) are collinear.

Show that the point A (1,-1,3), B ( 2,-4,5) and C ( 5,-13,11) are collinear.

(-5)/(13)+?=-1 8/(13) (b) (-8)/(13) (-18)/(13) (d) (18)/(13)

If P(-1,5) is hormonic conjugate of Q(-13,9) with respect to A and B. If A=(5,3) then find the length AB

Find the midpoint of the line joining the points (-5,7) and (-1,3).

ABC is an isosceles triangle.If the co- ordinates of the base are (1,3) and (-2,7) then co-ordinates of vertex A can be: (-(1)/(2),5) (b) (-(1)/(8),5)((5)/(6),-5) (d) (-7,(1)/(8))