[" 3.Find the in-centre "],[" by "(-1,0)quad (1,0)" and "(0,1)" ."]

Find the area of the triangle formed by (0,0),(1,0),(0,1) .

Find the area of the triangle formed by (0,0),(1,0),(0,1) .

Find the rank of the matrix A = [(1,0),(0,1)]

Find the equation of circle passing through the points : (1, 0), (-1, 0) and (0, 1). Also find its centre and radius.

Using vector method find the area of the triangle with vertices (1, 0, 0) (0, 1, 0) and (0, 0, 1)

Find the coordinates of the in-centre of the triangle with vertices A(-1,12), B(-1,0) and C (4,0).

Find the equation of the sphere passing through (0, 0, 0), (1, 0, 0), (0, 1, 0) and (0, 0, 1) .

Find the equation of the sphere passing through (0, 0, 0), (1, 0, 0), (0, 1, 0) and (0, 0, 1) .