The value of `k` such that the lines `3x-7y+13=0` and `kx+2y-5=0` are perpendicular to each other is

Show that the line 27x-18y+25=0 and 2x+3y+7=0 are perpendicular to each other.

The lines 3x+4y+7=0 and 4x+3y+5=0 are perpendicular.

Show that the line (x-5)/7=(y=2)/(-5)=z/1 and x/1 =y/2=z/3 are perpendicular to each other.

The value of k such that the lines 2x-3y+k=0,3x-4y-13=0 and 8x-11y-33=0 are concurrent is

Find the value of k for which the lines 5x+3y+2=0 and 3x-ky+6=0 are perpendicular.

Show that the lines (x-5)/7=(y+2)/(-5)=z/1and x/1=y/2=z/3\ are perpendicular to each other.

Find the value of 'k' for which the plane : 3x - 6y - 2z = 7 and 2x + y - kz = 3 are perpendicular to each other.

If the straight lines 2x+ 3y -3=0 and x+ky +7 =0 are perpendicular, then the value of k is