The lines `x – y + z = 1, 3x - y - z + 1 = 0, x + 4y – z = 1 and x + 2y +z + 1 = 0` are

The lines x + y + z - 3 = 0 = 2x - y + 5z - 6 and x - y - z + 1 = 0 = 2x + 3y + 7z - k are coplanar then k equals

The shortest distance between the lines 2x + y + z - 1 = 0 = 3x + y + 2z - 2 and x = y = z , is

Consider the lines x = y = z and the line 2x + y + z-1 = 0 = 3 x + y + 2z -2 is

If the lines 2x-y+3z + 4 = 0=ax + y-z + 2 and x-3y + z=0 =x + 2y + z +1 are coplannar then the value of a is ...........

Find the value of (( x -y )^3 + ( y - z )^3 + ( z - x )^3 )/ (9 ( x - y )( y - z ) ( z - x )) 1 . 0 2 . 1/9 3 . 1/3 4. 1

The equation of the line which intersect each of the two lines 2x+y-1 =0 =x-2y+3z and 3x -y+z+2 = 0 = 4x + 5y - 2z-3 = 0 and is parallel to (x)/(1)=(y)/(2)=(z)/(3) is

The equation of the line which intersect each of the two lines 2x+y-1 =0 =x-2y+3z and 3x -y+z+2 = 0 = 4x + 5y - 2z-3 = 0 and is parallel to (x)/(1)=(y)/(2)=(z)/(3) is

The equation of a line 4x-4y -z +11 =0 =x + 2y - z-1 can be put as