The equation of Z - axis , are…………..

The equation of z-axis in three-dimensional space is _

The equation of y-axis are (A) x=0,y=0 (B) x=0,z=0 (C) y=0,z=0 (D) none of these

The equation of y-axis are (A) x=0,y=0 (B) x=0,z=0 (C) y=0,z=0 (D) none of these

Statement I: We have an equation involving the complex number z is |(z-3i)/(z+3i)| which lies on the x-axis.Statement II: The equation of the x -axis is y=3

The equation of the radical axis of the two circles represented by the equations,|z-2|=3 and |z-2-3i|=4 an the complex plane is

If the equation of x-axis is x/a=(y-d)/(b)=z/c , what is the value of a,b,c,d?

The equation of a plane parallel to z-axis is

The equation of a line passing through (a, b, c) and parallel tp z-axis is

The equation of a line passing through (a, b, c) and parallel tp z-axis is

The direction cosines of z-axis are-