Where are the point: `(0,0,-4)`

Where are the point: (0,3,-2)

There are three points O(0,0) , A (4,0) and C (0,6) . Find the coordinates of the fourth point B such that OABC forms a rectangle.

Where will the point (0,a) lie?

Where will the point (a,0) lie?

" The incentre of the triangle formed by the points "(3,0,4)*(0,4,4),(0,0,4)" is "

The incentre of the triangle formed by the points (3,0,4),(0,4,4), (0,0,4) is

The orthocentre of the triangle formed by the points (0, 0), (8, 0) and (4, 6) is

P is a point on the curve f(x)=x-x^(2) such that abscissae of P lies in the interval (0,1) .The maximum area of the triangle POA,where and A are the points (0,0) and (1,0) is

Find the radius of the sphere through the points (0,5,0),(4,3,0),(4,0,3) and (0,4,3)

If the area of the triangle formed by the points (0,0),(h,0) and (0,4) is 2, then the sum of values of h is