The number of common chords of parabola `x=y^(2)-6y+1` and `y=x^(2)-6x+1` are

The number of common chords of the parabolas x=y^(2)-6y+11 and y=x^(2)-6x+11 is 1 (b) 2 (c) 4 (d) 6

Number of common chords of the parabolas x=y^(2)-6y+9 and y=x^(2)-6x+9 are

The number of common chords of the parabola y=x^(2)-x and x=y^(2)-y is

The length of the common chord of the parabolas y^(2)=x and x^(2)=y is

The number of common tangents to the parabola y^(2)=8x and x^(2)+y^(2)+6x=0 is

The lenght of the common chord of circles x^(2)+y^(2)-6x-16=0 and x^(2)+y^(2)-8y-9=0 is

The number of common tangents to the circles x^(2)+y^(2)-4x-6y-12=0 and x^(2)+y^(2)+6x+18y+26=0 , is

The number of common tangents to the circles x^(2)+y^(2)-4x-6y-12=0 and x^(2)+y^(2)+6x+18y+26=0 is :(1)1(2)2(3)3(4)4

Length of the common chord of the parabola y^(2)=8x and the circle x^(2)+y^(2)-2x-4y=0 is :