The equation of a curve Cis (x + 3)(y + 4) = x² + y² (i) Find dy/dx in terms of x and y. (ii) The line 2y = x + 3 meets C at two points. What can be said about the tangents to C at these points? Justify your answer. [2] (iii) Find the equation of the tangent at the point (6, 0), giving your answer in the form ax + by = c, where a, b and c are integers.
