If `|z|=1a n dz!=+-1,` then all the values of `z/(1-z^2)` lie on (a)a line not passing through the origin (b)`|z|=sqrt(2)` (c)the x-axis (d) the y-axis

int(dz)/(z sqrt(z^(2)-1))

If z!=1 and (z^2)/(z-1) is real, then the point represented by the complex number z lies (1) either on the real axis or on a circle passing through the origin (2) on a circle with centre at the origin (3) either on the real axis or on a circle not passing through the origin (4) on the imaginary axis

If z!=1 and (z^2)/(z-1) is real, then the point represented by the complex number z lies (1) either on the real axis or on a circle passing through the origin (2) on a circle with centre at the origin (3) either on the real axis or on a circle not passing through the origin (4) on the imaginary axis

Find the equation of plane containing the line x+ y - z = 0 = 2x – y + z and passing through the point (1, 2, 1)

Find the equation of line through the origin and a point where line (x-1)/2=(y-2)/4=(z-3)/4 . Cuts the z-axis.

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

The complex numbers z=x+iy which satisfy the equation |(z-5i)/(z+5i)|=1 lie on (a) The x-axis (b) The straight line y=5 (c) A circle passing through the origin (d) Non of these

The straight line (x-3)/3=(y-2)/1=(z-1)/0 is (a)Parallel to x-axis (b)Parallel to the y-axis (c)Parallel to the z-axis (d)Perpendicular to the z-axis

Find the equation of the plane passing through the point (-1,-1,2)a n d perpendicular to the planes 3x+2y-3z=1 a n d5x-4y+z=5.

The straight line (x-3)/3=(y-2)/1=(z-1)/0 is (a) Parallel to x-axis (b) Parallel to the y-axis (c) Parallel to the z-axis (d) Perpendicular to the z-axis