If the normal of any curve is parallel to x axis then I take a point (x1,y1) and then can I do dx/dy = 0 as said that normal is parallel to x axis if the equation of the curve is given by????
If the normal of any curve is parallel to x axis then I take a point (x1,y1) and then can I do dx/dy = 0 as said that normal is parallel to x axis if the equation of the curve is given by????