Grade 12Analytical Geometryequation of normal to the hyperbola xy=c2 at (x1,y1) and parametric also rishabh 12 Years agoGrade 12
rishabh12 Years agoxx1-yy1=(x1)2 - (y1)2 and since parametric point is (ct,c/t) equn is xt3 - yt - ct4 + c=0