If the points (2,0)(3,2)(5,4) and (0,t) are concylic, show that t=2 or 17.

If the points (2,0) (0,1), (4,0) and (0,a) are concylic then a=

If the points (0,0),(2,0),(0,-2) and (k,-2) are concylic then k=

If the points (2, 3), (0, 2), (4, 5) and (0, t) are concyclic, then t^(3) + 17 is equal to __________.

If points (t ,\ 2t),\ (-2,\ 6) and (3,\ 1) are collinear, then t= (a) 3/4 (b) 4/3 (c) 5/3 (d) 3/5

Show by using distane formula that the points (4,5,-5),(0,-11,3) and (2,-3,-1) are collinear.

The points (3,-2,-1),(-1,1,2),(2,3,-4) and (4,5,lamda) are coplanar when lamda= (A) 0 (B) (-146)/17 (C) 1 (D) (-17)/9

Show that the points A (1, 0), B(5, 3), C (2, 7) and D(-2, 4) are the vertices of a rhombus.

Show that the coplanar points (0,4,1),(2,3,-1),(4,5,0) and (2,6,2) are the vertices of a square.

Show that the line joining the points (4,-3) and (0,7) is perpendicular to the line joining the points (5,2) and (0,0) .

The polars of points (1,7) (2,6) and (t,5) with respect to a circle concurrent then t=