The curve `y^2+sqrt(x^4+2x^3 + 3x^2 + 2x+ 1)= x+ 2`, represents.

Find the points on the curve y = x^3 + 2x^2 - 3x + 1 , the tangents at which is parallel to the line 4x-y=3

The two curves y=x^2+1,y=3x^2-4x+3 at (1,2)

The lines represented by the equation x^2 + 2sqrt(3)xy + 3y^(2) -3x -3sqrt(3)y -4=0 , are

The lines represented by the equation x^2 + 2sqrt(3)xy + 3y^(2) -3x -3sqrt(3)y -4=0 , are

The eccentricity of the curve represented by the equation x ^(2) + 2y ^(2) -2x + 3y +2=0 is